Deleting a row from virtual column (ref_row)

[Project-APT]

Hi, I've actually facing a problem where I have 2 tables CustInfo and CustLog.
CustInfo ID is Phone No.
CustLog ID is UNIQUEID(). 

Ref_Row was used for CustInfo table to view back all records by a customer. It is able to edit but never to delete. Whenever delete action is carried. "Action Failed : Related CustLog is invalid". 

The record I want to delete is on the virtual column of Custinfo, "Related CustLog", but delete cant take place.

Is there a reason why? 

[Joseph_Seddik]

Please explain further, what do you want to delete exactly.  Thanks

[Project-APT]

Right. My bad. I wanted to delete the entries in "Related CustLog" and it prompts "Action Failed : CustLog is invalid"