Invalid token session. Please login again.

Hello Guys,

I been working on my webpage for a week now, everything was great until now ..
I got an error - Invalid token session. Please login again.
I cant even login, it shows error page, when i hit back iam at the login page ... When i refresh my webpage everything is ok, its not on mainatance, its active ) for me ), but admin panel isnt working, i cant get in ...

Any ideas ?

I tried all the browsers, i tried mobile version .. I tried windows, linux, mac ... Same result .. ERROR ..
I was using latest opencart version.

If you can't access admin, just redirecting to login page, it can be you have installed some module which can cause this issue. You can try via FTP from your storage folder ( which is asked to move somewhere by first access admin panel) delete all files from cache folder and modification folder except index.html files.
And try access admin.


Cheers

What was the last change you made before this happened?

There can be dozen reasons for this issue. I suggest you to hire someone to help you, otherwise it might take a lot of time to figure out without any skills.