News System Version 4.1.21 fehler

Tue, 31 Dec 2019 07:57:18 +0000
Message: PHP warning in file /var/www/html/wcf/templates/compiled/6_news_1_categoryList.php (2723): count(): Parameter must be an array or an object that implements Countable
File: /var/www/html/wcf/lib/system/WCF.class.php (309)
PHP version: 7.3.11-1~deb10u1
WCF version: 2.1.24 pl 2 (Typhoon)
Request URI: /news/
Referrer: http://familienchaos.net/news/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0
Information: ""
Stacktrace: 
  #0 /var/www/html/wcf/templates/compiled/6_news_1_categoryList.php(2723): wcf\system\WCF::handleError(2, 'count(): Parame...', '/var/www/html/w...', 2723, Array)
  #1 /var/www/html/wcf/lib/system/template/TemplateEngine.class.php(323): include('/var/www/html/w...')
  #2 /var/www/html/wcf/lib/page/AbstractPage.class.php(305): wcf\system\template\TemplateEngine->display('categoryList', 'news')
  #3 /var/www/html/wcf/lib/page/AbstractPage.class.php(100): wcf\page\AbstractPage->show()
  #4 /var/www/html/wcf/lib/system/request/Request.class.php(58): wcf\page\AbstractPage->__run()
  #5 /var/www/html/wcf/lib/system/request/RequestHandler.class.php(139): wcf\system\request\Request->execute()
  #6 /var/www/html/news/index.php(3): wcf\system\request\RequestHandler->handle('news')
  #7 {main}