Deathreaper15

We are having issues with the crafting pipes, whenever we try to request anything that is supposed to be crafted from the pipe, it boots the person who attempted to request it, crashing them rarely, even if we only attempt to request 1 item. I am attempting to figure out how to use them but due to this issue i cannot even figure out what is going on and why it won't craft. and the crash report shows no apparent cause for whats happening, anyone know whats going on?