Site broken after update to 3.0.0 in WP 6.1.1

None my codesnippet works after last upgrade, UX broken in backend and frontend.

You have a great plugin but there are 40 modules that not works now, help please. For example the below code not works and broke all the site…

 add_action('fluentform_before_insert_submission', function ( $insertData, $data,  $formId ) {
    if($formId != 3) {
        return;
    }
    $isExist = wpFluent()->table('fluentform_submissions')
        ->where('user_id', $insertData['user_id'])
        ->where('form_id', $formId )
        ->count();

  if ( $isExist >=2 ) //for max3 times
    {
        wp_send_json(['errors' => [
            'restricted' => ['Sorry, you reached your voting limit! You can vote again in the next round.']
        ]], 422);
    }

}, 10, 3 );

Regards!

• This topic was modified 2 hours, 21 minutes ago by c3media. Reason: Inserted example code that not works