Joomla\CMS\Cache\Storage\FileStorage::_deleteFolder You can't delete a base folder.
Joomla\CMS\Cache\Storage\FileStorage::_deleteFolder JFolder: :delete: Could not delete folder. Path: [ROOT]/cache/com_languages
Joomla\CMS\Cache\Storage\FileStorage::_deleteFolder Failed deleting 6a633a0c98ea5db608e68e7375f2b86d-cache-mod_menu-909fc765fb38d0e17c73af1e94dcabe1.php