Correct specification for orderBy function.
Replace SC_Query with DB at class Model\Report\Customer.
Replace SC_Query with DB at class Model\Report\Order.
Replace SC_Query with DB at class Model\Report\Product.
Replace SC_Query with DB at class Model\Report\Review.
Replace SC_Query with DB at class Model\Setting/Backup.
Replace SC_Query with DB at class Model\Setting\Basic.