1-click installations are uninstalled the same way as you would normally remove the intalled system. In most cases you simply have to delete the files on your webspace (for example, via FTP), and possibly MySQL tables (via PHPMyAdmin).
If you wish to reinstall a 1-click package, simply overwrite the existing installation by installing a fresh package with the same settings.
Article from the support category: 1-Click installation
We strongly advice you to choose another password
The entered password is known in "Have I Been Pwned", which is a public database of leaked passwords on the internet.
Probably you (or someone else) used the password before on a website, which is known to have leaked the password. It is not safe to use this password.
We strongly advice you to choose another password.
Enter your password here for more information: https://haveibeenpwned.com/Passwords.