diff --git a/.gitignore b/.gitignore
index 779a33ad..b0f5ad08 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,10 +2,7 @@ config.ini
 .idea/
 .vscode/
 __pycache__
-diario.json
-libopus-0.dll
-music.opus
-opusfiles/
+downloads/
 ignored/
 markovmodels/
 logs/
diff --git a/royalnet/audio/__init__.py b/royalnet/audio/__init__.py
index 6f10a592..3c4a9547 100644
--- a/royalnet/audio/__init__.py
+++ b/royalnet/audio/__init__.py
@@ -2,4 +2,4 @@ from .playmodes import PlayMode, Playlist, Pool
 from .youtubedl import YtdlFile, YtdlInfo
 from .royalaudiofile import RoyalAudioFile
 
-__all__ = ["PlayMode", "Playlist", "Pool", "YtdlFile", "YtdlInfo"]
+__all__ = ["PlayMode", "Playlist", "Pool", "YtdlFile", "YtdlInfo", "RoyalAudioFile"]
diff --git a/royalnet/bots/discord.py b/royalnet/bots/discord.py
index 4331e778..31226655 100644
--- a/royalnet/bots/discord.py
+++ b/royalnet/bots/discord.py
@@ -4,10 +4,11 @@ import typing
 import logging as _logging
 import sys
 from ..commands import NullCommand
-from ..commands.summon import SummonMessage, SummonSuccessful, SummonError
-from ..commands.play import PlayMessage, PlaySuccessful, PlayError
-from ..utils import asyncify, Call, Command, UnregisteredError
-from ..network import RoyalnetLink, Message
+from ..commands.summon import SummonMessage
+from ..commands.play import PlayMessage
+from ..utils import asyncify, Call, Command
+from royalnet.error import UnregisteredError
+from ..network import RoyalnetLink, Message, RequestSuccessful, RequestError
 from ..database import Alchemy, relationshiplinkchain
 from ..audio import RoyalAudioFile
 
@@ -146,12 +147,12 @@ class DiscordBot:
                 if channel.name == message.channel_name:
                     matching_channels.append(channel)
         if len(matching_channels) == 0:
-            return SummonError("No channels with a matching name found")
+            return RequestError("No channels with a matching name found")
         elif len(matching_channels) > 1:
-            return SummonError("Multiple channels with a matching name found")
+            return RequestError("Multiple channels with a matching name found")
         matching_channel = matching_channels[0]
         await self.bot.vc_connect_or_move(matching_channel)
-        return SummonSuccessful()
+        return RequestSuccessful()
 
     async def nh_play(self, message: PlayMessage):
         # TODO: actually do what's intended to do
@@ -163,7 +164,7 @@ class DiscordBot:
         for voice_client in self.bot.voice_clients:
             voice_client: discord.VoiceClient
             voice_client.play(audio_source)
-        return PlaySuccessful()
+        return RequestError()
 
     async def run(self):
         await self.bot.login(self.token)
diff --git a/royalnet/bots/telegram.py b/royalnet/bots/telegram.py
index 32a27c7a..cf45ab72 100644
--- a/royalnet/bots/telegram.py
+++ b/royalnet/bots/telegram.py
@@ -4,7 +4,8 @@ import typing
 import logging as _logging
 import sys
 from ..commands import NullCommand
-from ..utils import asyncify, Call, Command, UnregisteredError
+from ..utils import asyncify, Call, Command
+from royalnet.error import UnregisteredError
 from ..network import RoyalnetLink, Message
 from ..database import Alchemy, relationshiplinkchain
 
diff --git a/royalnet/commands/dateparser.py b/royalnet/commands/dateparser.py
index ac2bf6c7..f7f44522 100644
--- a/royalnet/commands/dateparser.py
+++ b/royalnet/commands/dateparser.py
@@ -1,6 +1,7 @@
 import datetime
 import dateparser
-from ..utils import Command, Call, InvalidInputError
+from ..utils import Command, Call
+from ..error import InvalidInputError
 
 
 class DateparserCommand(Command):
@@ -11,9 +12,7 @@ class DateparserCommand(Command):
 
     @classmethod
     async def common(cls, call: Call):
-        if len(call.args) == 0:
-            raise InvalidInputError("Missing arg")
-        text = " ".join(call.args)
+        text = call.args.joined(require_at_least=1)
         date: datetime.datetime = dateparser.parse(text)
         if date is None:
             await call.reply("🕕 La data inserita non è valida.")
diff --git a/royalnet/commands/diario.py b/royalnet/commands/diario.py
index c078cffc..98859009 100644
--- a/royalnet/commands/diario.py
+++ b/royalnet/commands/diario.py
@@ -4,7 +4,8 @@ import telegram
 import typing
 import os
 import aiohttp
-from ..utils import Command, Call, InvalidInputError, InvalidConfigError, ExternalError
+from ..utils import Command, Call
+from ..error import InvalidInputError, InvalidConfigError, ExternalError
 from ..database.tables import Royal, Diario, Alias
 from ..utils import asyncify
 
diff --git a/royalnet/commands/error_handler.py b/royalnet/commands/error_handler.py
index de90fb5c..ff3b2d82 100644
--- a/royalnet/commands/error_handler.py
+++ b/royalnet/commands/error_handler.py
@@ -1,6 +1,13 @@
 import traceback
 from logging import Logger
-from ..utils import Command, CommandArgs, Call, InvalidInputError, UnsupportedError, UnregisteredError
+from ..utils import Command, CommandArgs, Call
+from ..error import NoneFoundError, \
+                    TooManyFoundError, \
+                    UnregisteredError, \
+                    UnsupportedError, \
+                    InvalidInputError, \
+                    InvalidConfigError, \
+                    ExternalError
 
 
 class ErrorHandlerCommand(Command):
@@ -16,13 +23,28 @@ class ErrorHandlerCommand(Command):
         except InvalidInputError:
             await call.reply("⚠️ Questo comando non può essere chiamato da solo.")
             return
-        if e_type == InvalidInputError:
-            command = call.kwargs["previous_command"]
-            await call.reply(f"⚠️ Sintassi non valida.\nSintassi corretta: [c]{call.interface_prefix}{command.command_name} {command.command_syntax}[/c]")
+        if e_type == NoneFoundError:
+            await call.reply("⚠️ L'elemento richiesto non è stato trovato.")
+            return
+        if e_type == TooManyFoundError:
+            await call.reply("⚠️ La richiesta effettuata è ambigua, pertanto è stata annullata.")
             return
         if e_type == UnregisteredError:
             await call.reply("⚠️ Devi essere registrato a Royalnet per usare questo comando!")
             return
+        if e_type == UnsupportedError:
+            await call.reply("⚠️ Il comando richiesto non è disponibile tramite questa interfaccia.")
+            return
+        if e_type == InvalidInputError:
+            command = call.kwargs["previous_command"]
+            await call.reply(f"⚠️ Sintassi non valida.\nSintassi corretta: [c]{call.interface_prefix}{command.command_name} {command.command_syntax}[/c]")
+            return
+        if e_type == InvalidConfigError:
+            await call.reply("⚠️ Il bot non è stato configurato correttamente, quindi questo comando non può essere eseguito. L'errore è stato segnalato all'amministratore.")
+            return
+        if e_type == ExternalError:
+            await call.reply("⚠️ Una risorsa esterna necessaria per l'esecuzione del comando non ha funzionato correttamente, quindi il comando è stato annullato.")
+            return
         await call.reply(f"❌ Eccezione non gestita durante l'esecuzione del comando:\n[b]{e_type.__name__}[/b]\n{e_value}")
         formatted_tb: str = '\n'.join(traceback.format_tb(e_tb))
         call.logger.error(f"Unhandled exception - {e_type.__name__}: {e_value}\n{formatted_tb}")
diff --git a/royalnet/commands/ping.py b/royalnet/commands/ping.py
index df280dd7..489ea900 100644
--- a/royalnet/commands/ping.py
+++ b/royalnet/commands/ping.py
@@ -1,5 +1,6 @@
 import asyncio
-from ..utils import Command, Call, InvalidInputError
+from ..utils import Command, Call
+from royalnet.error import InvalidInputError
 
 
 class PingCommand(Command):
diff --git a/royalnet/commands/play.py b/royalnet/commands/play.py
index f4d0dd47..09c569f1 100644
--- a/royalnet/commands/play.py
+++ b/royalnet/commands/play.py
@@ -1,6 +1,6 @@
 import typing
 from ..utils import Command, Call
-from ..network import Message
+from ..network import Message, RequestSuccessful, RequestError
 
 
 class PlayMessage(Message):
@@ -8,15 +8,6 @@ class PlayMessage(Message):
         self.url: str = url
 
 
-class PlaySuccessful(Message):
-    pass
-
-
-class PlayError(Message):
-    def __init__(self, reason: str):
-        self.reason: str = reason
-
-
 class PlayCommand(Command):
     command_name = "play"
     command_description = "Riproduce una canzone in chat vocale."
@@ -25,11 +16,11 @@ class PlayCommand(Command):
     @classmethod
     async def common(cls, call: Call):
         url: str = call.args[0]
-        response: typing.Union[PlaySuccessful, PlayError] = await call.net_request(PlayMessage(url), "discord")
-        if isinstance(response, PlayError):
-            await call.reply(f"⚠️ Si è verificato un'errore nella richiesta di riproduzione:\n[c]{response.reason}[/c]")
-            return
-        elif isinstance(response, PlaySuccessful):
+        response: typing.Union[RequestSuccessful, RequestError] = await call.net_request(PlayMessage(url), "discord")
+        if isinstance(response, RequestSuccessful):
             await call.reply(f"✅ Richiesta la riproduzione di [c]{url}[/c].")
             return
+        elif isinstance(response, RequestError):
+            await call.reply(f"⚠️ Si è verificato un'errore nella richiesta di riproduzione:\n[c]{response.reason}[/c]")
+            return
         raise TypeError(f"Received unexpected response in the PlayCommand: {response.__class__.__name__}")
diff --git a/royalnet/commands/summon.py b/royalnet/commands/summon.py
index 5b43bf0c..8951b167 100644
--- a/royalnet/commands/summon.py
+++ b/royalnet/commands/summon.py
@@ -1,7 +1,7 @@
 import typing
 import discord
 from ..utils import Command, Call
-from ..network import Message
+from ..network import Message, RequestSuccessful, RequestError
 
 
 class SummonMessage(Message):
@@ -9,15 +9,6 @@ class SummonMessage(Message):
         self.channel_name: str = channel_name
 
 
-class SummonSuccessful(Message):
-    pass
-
-
-class SummonError(Message):
-    def __init__(self, reason: str):
-        self.reason: str = reason
-
-
 class SummonCommand(Command):
 
     command_name = "summon"
@@ -27,11 +18,11 @@ class SummonCommand(Command):
     @classmethod
     async def common(cls, call: Call):
         channel_name: str = call.args[0].lstrip("#")
-        response: typing.Union[SummonSuccessful, SummonError] = await call.net_request(SummonMessage(channel_name), "discord")
-        if isinstance(response, SummonError):
-            await call.reply(f"⚠️ Si è verificato un'errore nella richiesta di connessione:\n[c]{response.reason}[/c]")
+        response: typing.Union[RequestSuccessful, RequestError] = await call.net_request(SummonMessage(channel_name), "discord")
+        if isinstance(response, RequestError):
+            await call.reply(f"⚠️ Si è verificato un'errore nella richiesta di connessione:\n[c]{response.exc}[/c]")
             return
-        elif isinstance(response, SummonSuccessful):
+        elif isinstance(response, RequestSuccessful):
             await call.reply(f"✅ Mi sono connesso in [c]#{channel_name}[/c].")
             return
         raise TypeError(f"Received unexpected response type while summoning the bot: {response.__class__.__name__}")
diff --git a/royalnet/commands/sync.py b/royalnet/commands/sync.py
index 8601a3a3..128867c9 100644
--- a/royalnet/commands/sync.py
+++ b/royalnet/commands/sync.py
@@ -1,7 +1,8 @@
 import typing
 from telegram import Update, User
 from discord import Message, Member
-from ..utils import Command, Call, asyncify, UnsupportedError
+from ..utils import Command, Call, asyncify
+from royalnet.error import UnsupportedError
 from ..database.tables import Royal, Telegram, Discord
 
 
diff --git a/royalnet/error.py b/royalnet/error.py
new file mode 100644
index 00000000..206ad0aa
--- /dev/null
+++ b/royalnet/error.py
@@ -0,0 +1,26 @@
+class NoneFoundError(Exception):
+    """The element that was being looked for was not found."""
+
+
+class TooManyFoundError(Exception):
+    """Multiple elements matching the request were found, and only one was expected."""
+
+
+class UnregisteredError(Exception):
+    """The command required a registered user, and the user was not registered."""
+
+
+class UnsupportedError(Exception):
+    """The command is not supported for the specified interface."""
+
+
+class InvalidInputError(Exception):
+    """The command has received invalid input and cannot complete."""
+
+
+class InvalidConfigError(Exception):
+    """The bot has not been configured correctly, therefore the command can not function."""
+
+
+class ExternalError(Exception):
+    """Something went wrong in a non-Royalnet component and the command execution cannot be completed."""
diff --git a/royalnet/network/__init__.py b/royalnet/network/__init__.py
index 1f279e15..af1615d7 100644
--- a/royalnet/network/__init__.py
+++ b/royalnet/network/__init__.py
@@ -1,4 +1,4 @@
-from .messages import Message, ServerErrorMessage, InvalidSecretEM, InvalidDestinationEM, InvalidPackageEM
+from .messages import Message, ServerErrorMessage, InvalidSecretEM, InvalidDestinationEM, InvalidPackageEM, RequestSuccessful, RequestError
 from .packages import Package
 from .royalnetlink import RoyalnetLink, NetworkError, NotConnectedError, NotIdentifiedError
 from .royalnetserver import RoyalnetServer
@@ -13,4 +13,6 @@ __all__ = ["Message",
            "NotConnectedError",
            "NotIdentifiedError",
            "Package",
-           "RoyalnetServer"]
+           "RoyalnetServer",
+           "RequestSuccessful",
+           "RequestError"]
diff --git a/royalnet/network/messages.py b/royalnet/network/messages.py
index 97a95563..49dd5af1 100644
--- a/royalnet/network/messages.py
+++ b/royalnet/network/messages.py
@@ -23,3 +23,12 @@ class InvalidPackageEM(ServerErrorMessage):
 
 class InvalidDestinationEM(InvalidPackageEM):
     pass
+
+
+class RequestSuccessful(Message):
+    pass
+
+
+class RequestError(Message):
+    def __init__(self, exc: Exception):
+        self.exc = exc
diff --git a/royalnet/network/royalnetlink.py b/royalnet/network/royalnetlink.py
index a2bfb34f..bffe8db4 100644
--- a/royalnet/network/royalnetlink.py
+++ b/royalnet/network/royalnetlink.py
@@ -5,7 +5,7 @@ import functools
 import typing
 import pickle
 import logging as _logging
-from .messages import Message, ServerErrorMessage
+from .messages import Message, ServerErrorMessage, RequestError
 from .packages import Package
 
 loop = asyncio.get_event_loop()
@@ -29,7 +29,7 @@ class NetworkError(Exception):
 class PendingRequest:
     def __init__(self):
         self.event: asyncio.Event = asyncio.Event()
-        self.data: Message = None
+        self.data: typing.Optional[Message] = None
 
     def __repr__(self):
         if self.event.is_set():
@@ -139,8 +139,11 @@ class RoyalnetLink:
             # Package is a request
             assert isinstance(package, Package)
             log.debug(f"Received request {package.source_conv_id}: {package}")
-            response = await self.request_handler(package.data)
-            if response is not None:
-                response_package: Package = package.reply(response)
-                await self.send(response_package)
-                log.debug(f"Replied to request {response_package.source_conv_id}: {response_package}")
+            try:
+                response = await self.request_handler(package.data)
+            except Exception as exc:
+                response = RequestError(exc=exc)
+                return
+            response_package: Package = package.reply(response)
+            await self.send(response_package)
+            log.debug(f"Replied to request {response_package.source_conv_id}: {response_package}")
diff --git a/royalnet/utils/__init__.py b/royalnet/utils/__init__.py
index 65c2718c..fa04fc33 100644
--- a/royalnet/utils/__init__.py
+++ b/royalnet/utils/__init__.py
@@ -1,10 +1,10 @@
 from .asyncify import asyncify
-from .call import Call, UnregisteredError
-from .command import Command, CommandArgs, InvalidInputError, UnsupportedError, InvalidConfigError, ExternalError
+from .call import Call
+from .command import Command, CommandArgs
 from .safeformat import safeformat
 from .classdictjanitor import cdj
 from .sleepuntil import sleep_until
 from .plusformat import plusformat
 
-__all__ = ["asyncify", "Call", "Command", "safeformat", "InvalidInputError", "UnsupportedError", "CommandArgs",
-           "cdj", "InvalidConfigError", "ExternalError", "sleep_until", "UnregisteredError", "plusformat"]
+__all__ = ["asyncify", "Call", "Command", "safeformat", "CommandArgs",
+           "cdj", "sleep_until", "plusformat"]
diff --git a/royalnet/utils/call.py b/royalnet/utils/call.py
index a3e15f6a..a91bd618 100644
--- a/royalnet/utils/call.py
+++ b/royalnet/utils/call.py
@@ -10,10 +10,6 @@ if typing.TYPE_CHECKING:
 loop = asyncio.get_event_loop()
 
 
-class UnregisteredError(Exception):
-    pass
-
-
 class Call:
     """A command call. Still an abstract class, subbots should create a new call from this."""
 
diff --git a/royalnet/utils/command.py b/royalnet/utils/command.py
index e8ff76ee..cdb8cec3 100644
--- a/royalnet/utils/command.py
+++ b/royalnet/utils/command.py
@@ -1,25 +1,12 @@
 import re
 import typing
+
+from royalnet.error import InvalidInputError
+
 if typing.TYPE_CHECKING:
     from .call import Call
 
 
-class UnsupportedError(Exception):
-    """The command is not supported for the specified source."""
-
-
-class InvalidInputError(Exception):
-    """The command has received invalid input and cannot complete."""
-
-
-class InvalidConfigError(Exception):
-    """The bot has not been configured correctly, therefore the command can not function."""
-
-
-class ExternalError(Exception):
-    """Something went wrong in a non-Royalnet component and the command cannot be executed fully."""
-
-
 class CommandArgs(list):
     """The arguments of a command. Raises InvalidInputError if the requested argument does not exist."""
 
@@ -36,8 +23,13 @@ class CommandArgs(list):
                 raise InvalidInputError(f'Tried to get invalid [{item}] slice from CommandArgs')
         raise ValueError(f"Invalid type passed to CommandArgs.__getattr__: {type(item)}")
 
+    def joined(self, *, require_at_least=0):
+        if len(self) < require_at_least:
+            raise InvalidInputError("Not enough arguments")
+        return " ".join(self)
+
     def match(self, pattern: typing.Pattern) -> typing.Match:
-        text = " ".join(self)
+        text = self.joined()
         match = re.match(pattern, text)
         if match is None:
             raise InvalidInputError("Pattern didn't match")