I suspect this is related to the account migration to the new server; however, I still cannot log in even though more than five hours have passed since the following message appeared. Please investigate the issue.
"Your Account is in Maintenance Mode,
Your account is currently undergoing maintenance. It should be available again in a few minutes."
I'm looking into this now. It looks like the migration started last night and is hung. You have a large number of projects, which slows down the migration, though it should cause it to hang.
-Jeff
Thank you for your reply, Jeff.
I have been a user of MIT App Inventor since its initial release, so I certainly have a large number of projects saved. I intend to continue developing my projects, so I would appreciate your help in resolving this issue.
I worked around the issues that caused your account migration to fail. Your account is now on the new server, and you should be able to login.
-Jeff
Thank you very much, Jeff.
My account and all my projects have been restored.
Once again, thank you to the amazing App Inventor and its community!