While entering quantity error appears "ORA-06508: Pl/SQL: could not find program unit being called i

Hi,

While entering the quantity below error message appears;

ORA-06508: Pl/SQL: could not find program unit being called in Package QP_LIST_HEADERS_PVT Procedure Price Line

and while opening the Modifier Setup below error message appears;

ORA-06508: PL/SQL: could not find program unit being called in Package QP_Modifiers_PVT Procedure Modifier_List

This is critical issue and unable to enter single sales order.

Regards,

Syed