Error creating new page

Hello,

This morning, when I wanted to create a new page, I got a blanck page.
I checked extensions : no problem from them.
I thought setting to “Use WP Classic Editor” and then, I could get a page when I wanted to create a new one but at the bottom, it was written :
An error has occurred, check on your emails (or something like that, in french).

I check on my email and I got the error message that I write in confidential part similar to the following. What can I do? I couldn’t try to update to 4.7.5.1 as I didn’t find where to download it.
WordPress version 5.4.2
Thème actuel : Enfold Child (version 1.0) Enfold 4.7.5 installed
PHP version 7.3.16

Une erreur de type E_ERROR a été causée dans la ligne 429 du fichier /flex/storage/URL-WEBSITE/site/www/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/template-builder.class.php. Message d’erreur : Uncaught TypeError: Argument 1 passed to AviaBuilder::handler_wp_dbx_post_sidebar() must be an instance of WP_Post, instance of stdClass given, called in /flex/storage/URL-WEBSITE/site/www/wp-includes/class-wp-hook.php on line 287 and defined in /flex/storage/URL-WEBSITE/site/www/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/template-builder.class.php:429
Stack trace:
#0 /flex/storage/URL-WEBSITE/site/www/wp-includes/class-wp-hook.php(287): AviaBuilder->handler_wp_dbx_post_sidebar(Object(stdClass))
#1 /flex/storage/URL-WEBSITE/site/www/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(”, Array)
#2 /flex/storage/URL-WEBSITE/site/www/wp-includes/plugin.php(478): WP_Hook->do_action(Array)
#3 /flex/storage/URL-WEBSITE/site/www/wp-admin/edit-form-advanced.php(712): do_action(‘dbx_post_sideba…’, Object(stdClass))
#4 /flex/storage/URL-WEBSITE/site/www/wp-admin/post-new.php(75): require(‘/flex/storage/s…’)
#5 {main}
thrown

• This topic was modified 4 years, 5 months ago by assodefis.