Hi @johannsf ,
Glad you reached out, happy to help!
Checking the URL that the error gave https://bayareabarnsandtrails.com/BABTTWP2/give-donation-page/, I believe you are running into an edge-case issue with our core GiveWP plugin. What is happening is that installations in subfolders are not working. It needs to be on a subdomain OR on the main domain, but not subfolders.
This has been reported to our development team. You can follow up on the progress of the fix here: https://givewp.featureos.app/p/vfb-forms-generate-invalid-form-id-error.
We are actively tracking user issues to make sure our dev team is aware of them and can get them fixed. You can use the link to check in for updates or to provide additional details of your own.
For now, I’m adding an internal note on the report to log this support inquiry.
If possible, you can try moving the site to a subdomain installation or the root directory.
With that said, I’m marking this as resolved for now, but I would update this post if the bug has been resolved.
Thank you for using GiveWP.
Have a pleasant day!