Fatal error: Cannot use Joomla\String\String as String because 'String' is a special class name in /var/www/web3758/html/libraries/vendor/joomla/registry/src/Format/Json.php on line 12

Warning: session_write_close(): Failed to write session data (user). Please verify that the current setting of session.save_path is correct (/tmp) in /var/www/web3758/html/libraries/joomla/session/session.php on line 830