Zend certified PHP/Magento developer

magento-cloud: Authentication is required. Unable to login via browser

I’m encountering an issue while trying to log in via my web browser. When I attempt to sign in, I’m presented with the following screen:

Login Screen Error
Error

I’m also looking for guidance on how to completely remove Magento Cloud from my system. Could someone provide a step-by-step command or instructions for uninstalling Magento Cloud? I want to ensure it’s completely removed from my environment.

Any help with these issues would be greatly appreciated.