Same error
TypeError: count(): Argument #1 ($value) must be of type Countable|array, bool given (0)
#0 /var/www/vhosts/test.tractorum.it/forum/applications/core/modules/front/search/search.php(91): IPS\core\modules\front\search\_search->_form()
#1 /var/www/vhosts/test.tractorum.it/forum/system/Dispatcher/Controller.php(118): IPS\core\modules\front\search\_search->manage()
#2 /var/www/vhosts/test.tractorum.it/forum/system/Dispatcher/Dispatcher.php(153): IPS\Dispatcher\_Controller->execute()
#3 /var/www/vhosts/test.tractorum.it/forum/index.php(13): IPS\_Dispatcher->run()
#4 {main}