All of those plugins giving you errors, I’d try disabling them. Notice in your Warnings/Errors how they list a filepath. All of those correspond to a certain plugin.
For example, this:
Warning: Missing argument 2 for wpdb::prepare(), called in /homez.625/balibert/www/wp-content/plugins/wp-super-edit/wp-super-edit.core.class.php on line 114 and defined in /homez.625/balibert/www/wp-includes/wp-db.php on line 990
… this would coorespond to whatever plugin you have in the folder called “wp-super-edit” — Most likely a plugin called something like “WP Super Edit”. So first try disabling those plugins that are giving you the errors and see if that helps.