Kesalahan pada slot PCI atau kesalahan yang tidak dapat

error slotError: The slot appears available, but you can't pay for it. How to bypass it: Unfortunately, there's no workaround for this. It suggests that the slotUnderstand what each error lht codes means that's causes coin rejection1 - 1st Pair Not Contact2 - 2nd Pair Not Contact1-2 - 1st & 2nd Not Contact1-3 -st