Can't change a term in Term Verify. API Error: 500

I’ve just started using the “Term Verify” task in my exegetical checking, using the online browser version of APM. I’m consistently getting an error whenever I delete a previous term (e.g. we have two terms for ‘earth’) and am replacing it with another. Is there a way around this?
API error 500
Thanks for developing this software.

Thanks for reporting this issue. I’ll look into it. (Issue posted:

This issue has been corrected. I changed the way one of the tables was indexed. It was indexed differently on our production server and this led to the issue you experienced.