Phbot auto trade

Hi i am using auto trade and sometimes it gives error and stops. I couldn’t figure out why. Do you have any idea for this?

what is the error ? when its happens exactly ? random or not ? which server is it ?
Some details please…

It is joysro server and lately it is doing always. Stall is not working, it says there is no items to stall.

If it randomly started happening then they probably broke something to cause it to not work anymore.

How can i fix it?