How to link Request Custom Fields and Worklog Tables? Please help - URGENT

Hi There -

Last year, i created a custom field called "Request Type" prior to SDP releasing the default field of "Request Type".

Therefore, when integrated with Zoho Reports, "Request Type" was populated in table Request Type Custom Fields and not table Request, which I thought was fine.

However, I'm running into an issue.

When I create a report using attributes from Request Custom Fields and WorkLog, it say's I can't because they are not connected. However, they should be as Request ID exists in both and they are lookups.

Attached is the error I am getting.

How come they are saying they aren't linked? PLease help!