Errors occurred during upgradation:
i am upgrading my ojs-2.4.8-5 to 3.1.1, everything is fine but after upgrade admin pannel menue (Issue, setting, user & roles) not working. please help
Deprecated: Non-static method Application::getName() should not be called statically, assuming $this from incompatible context in D:\wamp64\www\ojs-2.4.8-5\lib\pkp\classes\install\form\InstallForm.inc.php on line 149