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/mod_menu
Joomla\CMS\Cache\Storage\FileStorage::_deleteFolder JFolder: :delete: Could not delete folder. Path: [ROOT]/cache/mod_k2_tools
Joomla\CMS\Cache\Storage\FileStorage::_deleteFolder JFolder: :delete: Could not delete folder. Path: [ROOT]/cache/jyaml_framework