Unable to upload claims without ProgramCost table

When I try to upload a claims file with only the Measure, Claim, Site, ContactClaim, and Participant tables (i.e., without ProgramCost) as an XLSX file, I encounter a server error. I tested this with both the example claims file and some of my PA’s claims.

I didn’t see any issues uploading an XLSX file with all tables or only with the ProgramCost table.