Password - Permission denied, please try again

Hello,
First of all, “Happy new year to everybody.

I have the following problem. I can’t access my Raspberry 4 via SSH.
I get the same error message for all users: “Permission denied, please try again”.

I even took a completely new SD card. After I uploaded the Raspberry image everything works. I can enter my user and password and get on the Raspberry.
But as soon as I install Home Assistant as a backup on the Raspberry again, I can no longer access the Raspberry. Am I making a mistake and have to use a different password?
By the way, the Raspberry also changes the IP address in the Fritz!Box after installing the home assistant.

Hope someone can help me