Merge pull request 'Fixed permission check' (#397) from dev into master

Reviewed-on: sh-edraft.de/kd_discord_bot#397

kdb-bot/src/modules/permission/service/permission_service.py

@@ -47,11 +47,15 @@ class PermissionService(PermissionServiceABC):
         return self._team_role_members(g_id, TeamMemberTypeEnum.moderator)
 
     def is_member_admin(self, member: discord.Member) -> bool:
-        return member in self.get_admins(member.guild.id)
+        return member is not None and member in self.get_admins(member.guild.id)
 
     def is_member_moderator(self, member: discord.Member) -> bool:
-        return member in self.get_admins(member.guild.id) or member in self.get_moderators(member.guild.id)
+        return (
+            member is not None
+            and member in self.get_admins(member.guild.id)
+            or member in self.get_moderators(member.guild.id)
+        )
 
     def is_member_technician(self, member: discord.Member) -> bool:
         config = self._technician_configs.get_technician_config()
-        return str(member.id) in config.technician_ids.select(lambda x: str(x))
+        return member is not None and str(member.id) in config.technician_ids.select(lambda x: str(x))