Hello, can you reload the page in your browser and see if that makes a difference? Also in the login screen, down next to version do you see a "sign out" text? If so please click and then sign in again. Please let me know if it fixes the issue so we can try something else. What device/browser are you using?
Viewing post in Cannot access the online web app
I'm having the same issue, except reloading the page (and doing a hard-refresh, emptying cache) do not help. I've bought here, made an account on the website, verified my email. I sign in, it asks me to verify here, I click "Authorize the Auger" on the itch page, but then it loads back to the login screen. I do not see "sign out" text; every time it reloads I have to put in my email/password again.