Problème prestashop

Après une restauration (rollback) impossible de rentrer dans le back office et erreur Warning: require_once(/home/funny548/public_html/dossier/tools/htmlpurifier/HTMLPurifier.standalone.php): failed to open stream: No such file or directory in /home/funny548/public_html/dossier/config/config.inc.php on line 135

Fatal error: require_once(): Failed opening required '/home/funny548/public_html/dossier/tools/htmlpurifier/HTMLPurifier.standalone.php' (include_path='.:/opt/alt/php70/usr/share/pear') in /home/funny548/public_html/dossier/config/config.inc.php on line 135