If you have any issues with the latest version, you can simple downgrade to the previous version. Here is how you can do it:
1

Disable autoupdate

Login as the root user (or any user that is in the root (initial) team), go to your Settings menu and disable the Auto Update feature.
2

Login to your server via SSH

Login to your server via SSH and execute the following command:
  curl -fsSL https://cdn.coollabs.io/coolify/install.sh | bash -s 4.0.0-beta.277
Where 4.0.0-beta.277 is the version you want to downgrade to.
Please note that downgrading could cause weird issues, as the database schema is not backward compatible. Some features might not work as expected.