List provided but... Not Found..

Hello
I have people signing up to a quiz and then send their data to Active Campaign.

It is set up correctly but, every now and then, I get an error message saying that list is not provided, even though it is.
Please see attached images.

What to do?

thank you

Attachments

Hey @Eugen

We have checked over your concern and the respective workflow. We have found that due to an invalid email address, the Create/Update Contact get failed to provide the correct response for further steps to "Add Contact To a list" and more.

Thank you