I have a question about phbot pvp server trade

Hello ! You know, we have a problem recently that we can’t take a caravan on private servers. I somehow overcame this with scriptcommand, but when buying or selling it gives a c10 error, throws it out of the game, I would like to provide a solution if anyone can help about this issue.

It can be bought now, but after buying once, it gives a c10 error when selling or buying again. I request help to solve this issue on behalf of all phbot users with a knowledgeable helper.

@NsyL I set it with Scriptcommands, I know it can be bought and I know it is sold, but I get the c10 error as soon as the npc window opens. Do you know about this issue?