problema su wordpress

Ciao a tutti non riesco ad accedere al sito causa errore su wordpress, presumo per un aggiornamento.
purtroppo avendo wordpress non riesco ad accedere a al database
vi riporto l'errore

Fatal error: Uncaught exception: TypeError: Argument 1 passed to AV\Themes\Shared_Themes_Manager::add_header_transl ations() must be of the type string, null given, called in /membri/esiscalabria/wp-includes/class-wp-hook.php on line 307 and defined in /membri/.dummy/master/wordpress/wp-content/plugins/altervista/classes/themes/shared-themes-manager.php:116 Stack trace: #0 /membri/esiscalabria/wp-includes/class-wp-hook.php(307): AV\Themes\Shared_Themes_Manager::add_header_transl ations(NULL, '/membri/esiscal...') #1 /membri/esiscalabria/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters('', Array) #2 /membri/esiscalabria/wp-includes/plugin.php(474): WP_Hook->do_action(Array) #3 /membri/esiscalabria/wp-includes/l10n.php(736): do_action('load_textdomain', NULL, '/membri/esiscal...') #4 /membri/esiscalabria/wp-includes/l10n.php(890): load_textdomain(NULL, '/membri/esiscal...') #5 /membri/esiscalabria/wp-content/themes/Divi/includes/builder/api/DiviExtension.php(266): load_plugin_textdomain(NULL, false, 'image-carousel- in /membri/.dummy/master/wordpress/wp-content/plugins/altervista/classes/class-av-error-handler.php on line 214