errors: only use err msg map when args don't have it

litecord/errors.py

@@ -77,14 +77,14 @@ class LitecordError(Exception):
     @property
     def message(self) -> str:
         """Get an error's message string."""
+        try:
+            return self.args[0]
+        except IndexError:
             err_code = getattr(self, 'error_code', None)
 
             if err_code is not None:
                 return ERR_MSG_MAP.get(err_code) or self.args[0]
 
-        try:
-            return self.args[0]
-        except IndexError:
             return repr(self)
 
     @property