I just got off the phone with support. I was advised to enter three underscores in the entry field instead of the zero. The error was cleared and I was able to refile my return. BUT, when I reviewed the new forms, I noticed that they are exactly the same as the rejected ones. I'm not confident that they will be accepted by IRS. I'll update once I hear back.
UPDATE: After only a few mins, my return was accepted by the IRS. The above fix resolves the issue. ^^^
