Except the error you received didn't have anything to do with the script. When OSbot decides to remove methods overnight without notifying the scripters, shit gets broken and we have no clue about it until someone tells us in the script threads. Everything worked fine until method removals occured overnight a few days ago, which broke shit.
It's kind of weird how no one else but you tells me it's an error with the script. I have people buying all the time, and if they bought it and it didn't work, surely they would tell me?