I have reinstalled bullseye on another ssd card and set it up.
sudo apt-get update
sudo apt-get upgrade
curl -sL https://deb.nodesource.com/setup_16.x | sudo -E bash -
sudo apt install -y nodejs
Then run the install script:
bash -c “$(curl -sL https://raw.githubusercontent.com/sdetweil/MagicMirror_scripts/master/raspberry.sh)”
loaded all modules from git and executed npm install if necessary.
(only with MMM-Navigate there were problems, I copied this from the old ssd-card)
Now I copied the config.js and css, that’s it.
With kind regards and Thanks