Call to a member function getContext() on null

I am getting the exception /var/Neos/Data/Temporary/Production/Cache/Code/Flow_Object_Classes/Neos_Neos_Ui_Controller_BackendController.php: Call to a member function getContext() on null,
please find the attachment for the same.

Any Idea?

That’s too little context to know what’s going wrong here.
Just from what you’ve written I’d say this is a cache problem, somehow related to backend login, but I can’t say for sure.
Could you please provide more information on what you try to do?

Thanks for the reply.

Yes issue got resolved when I flush the cache