Fehler bei Umstellung auf Version, bei Besuchstatisken

Aufgerufene URL
    GET /forum/board/39-forennachrichten/

Referrer
    https://unsere-grafikstube.de/forum/

Fehlermeldung
    preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated

Art
    wcf\system\exception\ErrorException

Datei (Zeile)
    /home/www/stube/lib/system/WCF.class.php (341)

Stacktrace

        [internal function] (?): wcf\system\WCF::handleError(…)
        /home/www/stube/lib/system/event/listener/VisitorListener.class.php (37): preg_replace(…)
        /home/www/stube/lib/system/event/EventHandler.class.php (172): wcf\system\event\listener\VisitorListener->execute(…)
        /home/www/stube/lib/system/event/EventHandler.class.php (240): wcf\system\event\EventHandler->executeListeners(…)
        /home/www/stube/lib/system/template/TemplateEngine.class.php (355): wcf\system\event\EventHandler->fireAction(…)
        /home/www/stube/lib/page/AbstractPage.class.php (390): wcf\system\template\TemplateEngine->display(…)
        /home/www/stube/lib/page/AbstractPage.class.php (135): wcf\page\AbstractPage->show(…)
        /home/www/stube/lib/system/request/Request.class.php (90): wcf\page\AbstractPage->__run(…)
        /home/www/stube/lib/system/request/RequestHandler.class.php (107): wcf\system\request\Request->execute(…)
        /home/www/stube/forum/index.php (11): wcf\system\request\RequestHandler->handle(…)

Fri, 25 Nov 2022 12:46:57 +0000
Message: preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated
PHP version: 8.1.12
WoltLab Suite version: 5.5.7
Request URI: GET /forum/thread/6563-wartungsarbeiten-server/?postID=339633
Referrer: https://unsere-grafikstube.de/forum/
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:107.0) Gecko/20100101 Firefox/107.0
Peak Memory Usage: 111881016/268435456
======
Error Class: wcf\system\exception\ErrorException
Error Message: preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated
Error Code: 0
File: /home/www/stube/lib/system/WCF.class.php (341)
Extra Information: -
Stack Trace: [{"function":"handleError","class":"wcf\\system\\WCF","type":"::","args":[8192,"preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated","\/home\/www\/stube\/lib\/system\/event\/listener\/VisitorListener.class.php",37],"file":"[internal function]","line":"?"},{"file":"\/home\/www\/stube\/lib\/system\/event\/listener\/VisitorListener.class.php","line":37,"function":"preg_replace","args":["\/\\<\\w[^<>]*?\\>([^<>]+?)\\<\\\/\\w+?\\>?|\\<\\\/\\w+?\\>\/","$1",null],"class":"","type":""},{"file":"\/home\/www\/stube\/lib\/system\/event\/EventHandler.class.php","line":172,"function":"execute","class":"wcf\\system\\event\\listener\\VisitorListener","type":"->","args":["wcf\\system\\template\\TemplateEngine","wcf\\system\\template\\TemplateEngine","afterDisplay",[]]},{"file":"\/home\/www\/stube\/lib\/system\/event\/EventHandler.class.php","line":240,"function":"executeListeners","class":"wcf\\system\\event\\EventHandler","type":"->","args":[{"wcf\\system\\event\\listener\\VisitorListener":"[redacted]"},"wcf\\system\\template\\TemplateEngine","wcf\\system\\template\\TemplateEngine","afterDisplay",[]]},{"file":"\/home\/www\/stube\/lib\/system\/template\/TemplateEngine.class.php","line":355,"function":"fireAction","class":"wcf\\system\\event\\EventHandler","type":"->","args":["wcf\\system\\template\\TemplateEngine","afterDisplay"]},{"file":"\/home\/www\/stube\/lib\/page\/AbstractPage.class.php","line":390,"function":"display","class":"wcf\\system\\template\\TemplateEngine","type":"->","args":["thread","wbb"]},{"file":"\/home\/www\/stube\/lib\/page\/AbstractPage.class.php","line":135,"function":"show","class":"wcf\\page\\AbstractPage","type":"->","args":[]},{"file":"\/home\/www\/stube\/lib\/system\/request\/Request.class.php","line":90,"function":"__run","class":"wcf\\page\\AbstractPage","type":"->","args":[]},{"file":"\/home\/www\/stube\/lib\/system\/request\/RequestHandler.class.php","line":107,"function":"execute","class":"wcf\\system\\request\\Request","type":"->","args":[]},{"file":"\/home\/www\/stube\/forum\/index.php","line":11,"function":"handle","class":"wcf\\system\\request\\RequestHandler","type":"->","args":["wbb"]}]