Can't logout or do any other action


So in the last 3 days I tried the logout and other actions related to issues with no success, but the navigation works…
I get this error

Unable to update events. Please try again

tried clearing cache and login again but still the same.

and in network I get this error:

CSRF Failed: Referer checking failed - no Referer.

Do you have any browser add-on enabled, stripping the referrer header? Or may be a proxy in between?