Add language string for invalid or missing access file notification

administrator/language/en-GB/en-GB.lib_joomla.ini

@@ -233,6 +233,7 @@ JLIB_DATABASE_QUERY_FAILED="Database query failed (error # %s): %s"
 JLIB_DOCUMENT_ERROR_UNABLE_LOAD_DOC_CLASS="Unable to load document class."
 JLIB_ENVIRONMENT_SESSION_EXPIRED="Your session has expired. Please log in again."
 JLIB_ENVIRONMENT_SESSION_INVALID="Invalid session cookie. Please check that you have cookies enabled in your web browser."
+JLIB_ERROR_COMPONENT_SPECIFIC_ACCESS_XML_FILE_INVALID_FORMAT_OR_MISSING="The component specific access XML file at: %s has either an invalid format or is missing."
 JLIB_ERROR_INFINITE_LOOP="Infinite loop detected in JError."
 JLIB_EVENT_ERROR_DISPATCHER="JEventDispatcher: :register: Event handler not recognised. Handler: %s"
 JLIB_FILESYSTEM_BZIP_NOT_SUPPORTED="BZip2 Not Supported."