I also had crashed. On my plugin page I have this error:
An error of type E_COMPILE_ERROR was caused in line 151 of the file .../public_html/wp-content/plugins/add-search-to-menu/add-search-to-menu.php. Error message: require_once(): Failed opening required '.../public_html/wp-content/plugins/add-search-to-menu/includes/class-is-stemmer.php' (include_path='.:/opt/cpanel/ea-php74/root/usr/share/pear')

I tried to delete plugin and install it again, but without success. Same error again.