[TRANSLATIONS] Invalid translations/en.json: Invalid translation key 'OnGrid', need to be [a-z0-9-_]+ and cannot start or end with a hyphen or underscore. for dictionary value @ data['entity']['sensor']['status_system_status']['state']. Got {'OnGrid': 'On Grid'}

Process completed with exit code 1.

[CONFIG_SCHEMA] Integrations which implement 'async_setup' or 'setup' must define either 'CONFIG_SCHEMA', 'PLATFORM_SCHEMA' or 'PLATFORM_SCHEMA_BASE'. If the integration has no configuration parameters, can only be set up from platforms or can only be set up from config entries, one of the helpers cv.empty_config_schema, cv.platform_only_config_schema or cv.config_entry_only_config_schema can be used.

[TRANSLATIONS] config.title key has been moved out of config and into the root of strings.json. Starting Home Assistant 0.109 you only need to define this key in the root if the title needs to be different than the name of your integration in the manifest.