Microsoft Patch Compliance by Computer Group - Can't generate Patch Report

Hi Friends,
Any idea regarding the below issue.

Issue: We are using “Fixlet Compliance by Computer Group (v1.6)” BigFix Web tool to generate or measure the monthly patch compliance report. But now this tool stopped working (can’t generate the report) for some of the computer groups where contain >500 Server. my bigfix version is
9.2.8.74.

When I hit on Generate button, that shows error below.

image

Hi Team,
Any suggestion on above issue ?