Since today morning i am getting following error whenever i try to open any opportunity.
Object type not accessible. Please check permissions and make sure the object is not in development mode: There is an implementation restriction on ActivityHistories. When you query this relationship, security evaluation is implemented for users who don't have administrator permissions, and you must use a specific sort order: ActivityDate DESC, LastModifiedDate DESC
I have compared opportunity pages and classes with local history but didn't find any difference.
Profile is also not got changed. Can any one please help