fix: catch errors when posting to all services

closes #13

Author: Snazzah

Diff for: dbots/poster.py

@@ -239,11 +239,14 @@ async def manual_post(
             if hasattr(self, 'on_custom_post'):
                 keys.append('custom')
             for key in keys:
-                responses.append(await self.manual_post(
-                    server_count = server_count,
-                    service = key, user_count = user_count,
-                    voice_connections = voice_connections
-                ))
+                try:
+                    responses.append(await self.manual_post(
+                        server_count = server_count,
+                        service = key, user_count = user_count,
+                        voice_connections = voice_connections
+                    ))
+                except Exception as error:
+                    responses.append(error)
             return responses
         _service = Service.get(service)
         key = self.get_key(service)
@@ -325,4 +328,4 @@ def shard_id(self) -> int or None:
 
     @property
     def shard_count(self) -> int or None:
-        return self._shard_count or self.filler.shard_count if self._sharding else None
+        return self._shard_count or self.filler.shard_count if self._sharding else None