An exception occurred: [Exception] Could not find class SV\ContactUsThread\XF\Entity\User when attempting to extend XF\Entity\User in src/XF/Extension.php on line 174
XF\Extension->extendClass() in src/XF/Mvc/Entity/Manager.php at line 53
XF\Mvc\Entity\Manager->getEntityClassName() in src/XF/Mvc/Entity/Manager.php at line 123
XF\Mvc\Entity\Manager->find() in src/XF/Repository/User.php at line 24
XF\Repository\User->getVisitor() in src/XF/App.php at line 1767
XF\App->getVisitorFromSession() in src/XF/Admin/App.php at line 53
XF\Admin\App->start() in src/XF/App.php at line 2174
XF\App->run() in src/XF.php at line 390
XF::runApp() in admin.php at line 13