Please make sure the email address and password you entered on the Login screen match what you entered when registering.
Entering a different email address / password will result in registering a new account instead of logging in.
When logging in using a verification email, the verification link can only be used once. Trying to use it again will result in an error.
You can request a new verification email by entering your email address on the Login screen.
For Android users: You may experience issues logging in when using the desktop version of the website.
If so, please turn off desktop mode and try to log in again.