Minimum Purchase Error

Product:Quantity:Price:Total:FE-GE-12V250-MDC 21" Dia x 9.5" Tall1  (Error)$14.80$14.80FE-195- GM Detroit 471 Natural, size - 7 1/2″ Base Diameter x 8″ Tall cone1  (Error)$14.00$14.00FE-6BTA-5 Cummins 6BTA, size- 6"diameter x 10.25 Tall cylinder shape1  (Error)$13.00$13.00FE-184- GM Detroit 8V92 Single Turbo 6062TK20 60 series 375hp, size - 9″ Base Diameter x 14″ Tall cone1  (Error)$15.50$15.50FE-190-Caterpillar 3208 450 hp Single Turbo, Size 7 1/2" Base Diameter x 10" Tall Cone1  (Error)$13.50$13.50FE-VOLVO PENTA-D12/D16 Size, 11.5" Diameter at large end x 11.5" Tall Cone1  (Error)$14.50$14.50FE-196- GM Detroit 871 Natural, size - 9" Diameter x 9" Tall cone shaped1  (Error)$15.00$15.00Error => Minimum Purchase quantity of 6 units required of each product within the product group. (Rule ID = 541)