This is not a friendly error message. I have no idea what customQuestionText-FB8A99EA-CFEA-09E6-E0BD-5E80831A4D3D means. Granted there’s only one other field left, so I think I’m smart enough to figure it out. But that’s not the point. As a would-be customer, I shouldn’t have to think about what you’re trying to tell me.
Site owners: feedback is important. Don’t overlook it. Your site is a reflection of your brand and your competence. Remember, your customerswilljudge you by it!