This error occurs on load of Employee recent activity. Employee recent activity should be configured to display on Confirmation Statement.

ErrorSource : ControllerAppTier.GetCollection->BenAdminControllerAppTier.GetData->CollectionManager.GetCollection->EmployeeCollection.GetRecentActivities
ErrorMessage: Ambiguous column name 'USERID'.
Ambiguous column name 'UserID'.
Ambiguous column name 'USERID'.
Ambiguous column name 'UserID'.

Changes Done: This error was occurring in Stored Procedure execution as Table alias was not specified for UserID column. We have added respective table alias name for required columns.
Stored Procedure name: OES_SP_GetRecentlyUpdatedEmployeeTable