Dynamic data attachment not working

I have tried to link the information from the parent project to the child project, and when I choose to import data, I get this error message. I have tested with other forms and it works, so I don’t know what the error is. Below is the message: Minified React error #31; visit Minified React error #31 – React for the full message or use the non-minified dev environment for full errors and additional helpful warnings.

Welcome to the community, @alvarees! Maybe you will need first to try out using the sample XLSForms shared in this support article:

You can customize your XLSForm later after you understand how the dynamic data attachment features work.