Dynamics 365 customers service portal error - An unknown failure has occurred. Error ID # [a792c2e5-e92c-4084-9570-832c6c3d9dfb]

Hi All,

When am trying to create record for Time Entry Entity from the entity form in customer service port. 

am getting the below error .

An unknown failure has occurred. Error ID # [a792c2e5-e92c-4084-9570-832c6c3d9dfb]

Kindly please suggest .

Thanks,

Waseem