Support Error: Access to undeclared static property???


I have a urgent problem about xenforo, so I have a license with the xenforo version 2.0.9 and I have some security problems, so I decided to download some security fixes from xenforo, now no one can login to my forum and I get this problem error:
Error: Access to undeclared static property: XF\Pub\App::$allowPageCache src/XF/Pub/Controller/Login.php:13

Can anyone fix that? @XenForo Can you help me?