I entered the name and username and password associated with it. The clicked “save and continue”, but I only get a blank screen.
Hmm - sounds like a PHP error occurred (sometimes results in a blank screen like this). Do you have access to your server’s Apache logs to see what the error was? That will help debugging.
FYI we host a weekly dev call if you want to try figuring this out together: farmOS Community Calls
We also have a chat room - feel free to post questions there and I (or others) can respond live (or when we’re available): https://app.element.io/#/room/#farmOS:matrix.org