When I try logging in, it says "authentication failed" There is a possibility that you're trying to register with an account you previously deleted.Please create a new account. Related articles I can't link my account to X I can't log in because I forgot my account information I logged in for the first time in a while and all my data is gone Do I have to transfer my account if I change devices? All my posted creations were gone when I logged in. How do I fix this?