I have checked containers/app.yml and installed it. The doctor command ran without any errors, and the email connection is normal. However, I am stuck on the ‘Register Admin Account’ page and cannot proceed to the next step. The page refreshes immediately after clicking the ‘Register’ button. Why is this happening? Is it related to my configuration file ‘app.yml’?

it would be worth having a look at it. Are you using SSH? i recommend downloading your app.yml file via scp so you can easily redact sensitive info and share it here
Hmm… @zhusu was there an activation email for you account sent to you? If so, perhaps try activating your account?
obviously you can delete your mail provider’s confirmation such that the related info is no longer sensitive / private
You might have ran into the same situation as I did. I experienced the same issue and tried whether creating an admin using rake would solve the issue. Only to find out that the password should be at least 15 characters.
Please try whether filling in an admin password of 15+ characters solves it for you.
Thanks,I have solved this problem.(I’ve confirmed that an administrator password of at least 15 characters is required; I hadn’t noticed this before.)
For some reason the finish wizard doesn’t warn about the password not qualifying for the minimum length - so it makes sense you’ve missed that (I did too). Glad this got you through it!
