Try disabling any ad blockers or trackers, clearing your temporary data cache and if that doesn't work try a guest profile which should be extension free, just in case on is messing with EN.
This page may help a little:
https://help.evernote.com/hc/en-us/articles/29147324292243-What-to-do-if-you-re-being-logged-out-immediately-from-Evernote-Web