Thanks for reply, but sorry, I don't have any screenshot, and I was using this on VPS and I had to delete that VPS today. And I'm not sure about that bug, how to describe, everything works fine at first, I watch for like 10-20mins and leave it for few hours with breaks and everytime I come back I found that he just standing a little further than sand crabs and do nothing, even there is free crabs to kill. But I haven't tried sand crabs these days, maybe it's already fixed, or maybe I do something wrong with settings. And yes, I was using plugin, I can't even use usual settings, because when I choose sand crabs I got message that I must use sand crab plugin. Thanks for trying to help, I'll check later, If I find any bugs, I will collect all info for you to solve this.