Hi @ivoconservacion,
Thank you flagging this again! Kindly please be informed that this case has already been informed by @wroos in a post discussed earlier:
I have reported this to our developers and will let you know if i hear back from them.
BTW, please be informed that though, you see the error screen, it actually does not affect your survey form from collecting the hidden questions.
Thank you once again for letting us know on this! Appreciate your effort and expect the same in the upcoming days as well!
Have a great day!