This error indicates that the username/email or password has not been entered correctly.
- Check your login data by logging into the manufacturer portal of your PV system, for example, with the same data.
- Reset the password in the manufacturer portal and try to create your system with us using the new password.
- If only a serial number or similar is required for the creation, check this again digit by digit. Sometimes it is easy to confuse an O and a 0.