Fatal error: PHP error in file /www/htdocs/v138330/get/lib/page/GuildEventsPage.class.php (150): Non-static method Event::isRaidLeader() should not be called statically, assuming $this from incompatible context

Information:

error message: PHP error in file /www/htdocs/v138330/get/lib/page/GuildEventsPage.class.php (150): Non-static method Event::isRaidLeader() should not be called statically, assuming $this from incompatible context
error code: 0
file: /www/htdocs/v138330/wcf/lib/system/WCF.class.php (281)
php version: 5.6.40-nmm7
wcf version: 1.1.10 pl 1 (Tempest)
date: Thu, 18 Apr 2024 17:06:20 +0000
request: /index.php?page=GuildEvents&s=ddc5fc0561b95c30cae1637095248fb9b5b78c5d
referer:

Stacktrace:

#0 /www/htdocs/v138330/get/lib/page/GuildEventsPage.class.php(150): WCF::handleError(8192, 'Non-static meth...', '/www/htdocs/v13...', 150, Array)
#1 /www/htdocs/v138330/wcf/lib/page/AbstractPage.class.php(93): GuildEventsPage->assignVariables()
#2 /www/htdocs/v138330/get/lib/page/GuildEventsPage.class.php(162): AbstractPage->show()
#3 /www/htdocs/v138330/wcf/lib/page/AbstractPage.class.php(46): GuildEventsPage->show()
#4 /www/htdocs/v138330/wcf/lib/util/RequestHandler.class.php(64): AbstractPage->__construct()
#5 /www/htdocs/v138330/wcf/lib/util/RequestHandler.class.php(92): RequestHandler->__construct('GuildEvents', Array, 'page')
#6 /www/htdocs/v138330/get/index.php(8): RequestHandler::handle(Array)
#7 {main}