Welcome to the Make community!
According to the error message, which I read, it looks like the issue is coming from either of these fields:
One of these fields are expecting a number. A guess would be the ItemRef field, as it could require an item ID, and IDs are commonly numeric.
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: Did you know, the concepts of about 70% of questions asked on this forum are already covered in the Make Academy. Investing some effort into it will save you lots of time and frustration using Make later!