I have tried with other custom objects and also with standard object but no issue is occurring for that. I also tried by removing the feed tracking for this object but still no success. The behavior I have noticed is that, if there will be any editable field on Layout, this error popup comes on UI. When I removed all of the fields from layout, this error popup didn't come.
I tried with the classic view and it's working fine there.
Can anyone please suggest what could be the issue in it ?