Thank you for reaching out to the Community. Your description does not match any of our known issues, so I took a peek in your account to do some testing. I made a copy of the one question Survey Page that I saw, titled it CTCT Community Test, published it, and it worked without issue. I left it active on your Campaigns page so you can also test it.
If you see this error again, will you please take a screenshot, and/or call our Support Team for on the spot troubleshooting?