Confirm you are using the same email you registered with and check carefully for typos — an extra space or a .com instead of .de is enough.
Use Forgot password on the sign-in page to reset your password via email. The reset link arrives within a few minutes; check spam if it does not.
If you use two-factor authentication, enter the current code from your authenticator app when prompted, and make sure your phone clock is set automatically.
If you originally signed up with Google, Apple, or Facebook, use that same social button instead of email and password — the accounts are separate until you link them in Settings → Account.
For security, password reset links expire and only work for the email they were sent to. If several people share one login, consider proper team accounts on Premium instead — individual logins are safer, auditable, and no one gets locked out when someone changes the password. If you are locked out mid-service,
dinerr Mobile on a personal phone is the fastest backup — signing in there does not log out any other device, so the kitchen tablet keeps running untouched.
