Fatal error: PHP error in file /www/htdocs/w00daf1f/wcf/lib/data/contentPage/ContentPageSearchResult.class.php (13): Declaration of ContentPageSearchResult::getFormattedMessage() should be compatible with ViewableContentPage::getFormattedMessage($pageNo = 0)

Information:

error message: PHP error in file /www/htdocs/w00daf1f/wcf/lib/data/contentPage/ContentPageSearchResult.class.php (13): Declaration of ContentPageSearchResult::getFormattedMessage() should be compatible with ViewableContentPage::getFormattedMessage($pageNo = 0)
error code: 0
file: /www/htdocs/w00daf1f/wcf/lib/system/WCF.class.php (281)
php version: 5.5.38-nmm2
wcf version: 1.1.10 pl 2 (Tempest)
date: Thu, 30 Aug 2018 12:46:39 +0000
request: /index.php?form=Search
referer: http://www.brandschutzerziehung-sh-forum.de/169-startseite/?s=d014475352a1706d83ce1c4336bda3c8cde60c4d

Stacktrace:

#0 /www/htdocs/w00daf1f/wcf/lib/data/contentPage/ContentPageSearchResult.class.php(13): WCF::handleError(2048, 'Declaration of ...', '/www/htdocs/w00...', 13, Array)
#1 /www/htdocs/w00daf1f/wcf/lib/data/contentPage/ContentPageSearch.class.php(4): require_once('/www/htdocs/w00...')
#2 /www/htdocs/w00daf1f/wcf/lib/data/message/search/SearchEngine.class.php(73): require_once('/www/htdocs/w00...')
#3 /www/htdocs/w00daf1f/wcf/lib/data/message/search/SearchEngine.class.php(33): SearchEngine::loadSearchTypeObjects()
#4 /www/htdocs/w00daf1f/wcf/lib/form/SearchForm.class.php(364): SearchEngine::getSearchTypes()
#5 /www/htdocs/w00daf1f/wcf/lib/page/AbstractPage.class.php(90): SearchForm->readData()
#6 /www/htdocs/w00daf1f/wcf/lib/form/SearchForm.class.php(407): AbstractPage->show()
#7 /www/htdocs/w00daf1f/wcf/lib/page/AbstractPage.class.php(46): SearchForm->show()
#8 /www/htdocs/w00daf1f/wcf/lib/util/RequestHandler.class.php(64): AbstractPage->__construct()
#9 /www/htdocs/w00daf1f/wcf/lib/util/RequestHandler.class.php(95): RequestHandler->__construct('Search', Array, 'form')
#10 /www/htdocs/w00daf1f/index.php(13): RequestHandler::handle(Array)
#11 {main}