Cannot Post Start New Topic

[TwtJogging]

Why I cannot post new topic?

Here the log error

[01-Aug-2022 11:00:14 UTC] PHP Fatal error: Uncaught Error: Class 'tidy' not found in /home/website/public_html/wp-content/themes/SiForum-main/functions.php:669
Stack trace:
#0 /home/website/public_html/wp-includes/class-wp-hook.php(307): create_new_from_from_index('')
#1 /home/website/public_html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters('', Array)
#2 /home/website/public_html/wp-includes/plugin.php(476): WP_Hook->do_action(Array)
#3 /home/website/public_html/wp-admin/admin-ajax.php(187): do_action('wp_ajax_create_...')
#4 {main}
thrown in /home/website/public_html/wp-content/themes/SiForum-main/functions.php on line 669

[sinanisler]

oh thats happening because i used tidy module
we will change that we are aware of it

just install the PHP module if you are in vps ;

apt-get install php-tidy

that will fix it.