Error BSObj Plugin after change PaymentDevice

[Zerround]

I want to change PaymentDevice of some item to only Copper Coin (64).

I run SR_Gameserver but It show error.

PHP Code:

BSObj Plugin
(PACKAGE_ITEM_xxxxx)register gold price 


I try change cashitem from 1 to 0 on _RefObjCommon table.

But it still error too.

How to fix it ?
Thank you