Can’t add or duplicate service

Hi guys,

This is Gabe again, frontend dev. of BB Re:form. I bumped into a serious issue with the latest update, namely that I cannot add or duplicate service at all.

As you can see in the screencast video, I can’t even duplicate a service to change its settings as a workaround, it just keeps “rolling” forever, but would not duplicate.

Any idea or (quick) help would be appreciated. (Worst case, is there a way to roll back to a previous version?)
Thank you in advance!
Kind regards, Gabe

PS: I just tested on a different site, even different hosting server, same issue, can’t add or duplicate service.

The page I need help with: [log in to see the link]