Custom Entity - Insufficient Permissions

Hi Team,

We have a custom entity and whenever we're opening the record of that custom entity, we're getting following pop-up:-

Exception Message: Error_Title_0x80040220

ErrorCode: -2147220960
HexErrorCode: 0x80040220
Error Details: Error_Message_0x80040220

Activity Id: a7c63c76-8e7e-4003-8c57-29269d07b11c

Do you know how to read this message? or how to debug this message? This issue started happening after Omnichannel updated into our environments.

Thanks.