Fix log error message (#18305)

* Fix log error message

* Update __init__.py

homeassistant/components/hassio/__init__.py

@@ -143,9 +143,10 @@ async def async_check_config(hass):
         result = await hassio.check_homeassistant_config()
     except HassioAPIError as err:
         _LOGGER.error("Error on Hass.io API: %s", err)
+    else:
+        if result['result'] == "error":
+            return result['message']
 
-    if result['result'] == "error":
-        return result['message']
     return None