Make sure there is always an error message

custom_components/volvo_cars/coordinator.py

@@ -205,7 +205,7 @@ async def _async_update_data(self) -> CoordinatorData:
                     _LOGGER.debug(
                         "%s - Error during data update: %s",
                         self.config_entry.entry_id,
-                        result,
+                        result.message,
                     )
                     exception = exception or result
                     continue

custom_components/volvo_cars/volvo/api.py

@@ -246,13 +246,13 @@ async def _async_request(
             redacted_exception = RedactedClientResponseError(ex, self._vin)
 
             if ex.status in (401, 403):
-                raise VolvoAuthException from redacted_exception
+                raise VolvoAuthException(ex.message) from redacted_exception
 
-            raise VolvoApiException from redacted_exception
+            raise VolvoApiException(ex.message) from redacted_exception
 
         except (ClientError, TimeoutError) as ex:
             _LOGGER.debug("Request [%s] error: %s", operation, ex)
-            raise VolvoApiException from ex
+            raise VolvoApiException(ex.__class__.__name__) from ex
 
 
 class RedactedClientResponseError(ClientResponseError):

custom_components/volvo_cars/volvo/models.py

@@ -181,10 +181,10 @@ class AuthorizationModel:
 class VolvoApiException(Exception):
     """Thrown when an API request fails."""
 
+    def __init__(self, message: str = "") -> None:
+        """Initialize exception."""
+        self.message = message
+
 
 class VolvoAuthException(VolvoApiException):
     """Thrown when the authentication fails."""
-
-    def __init__(self, message: str = "") -> None:
-        """Initialze exception."""
-        self.message = message