KirTyun

Hello together I am new in these Forums because I search for help and maybe I find it here. I want to add to the human model a tail. I used the Draenei tail because it has it own bones already. But if I want to import it from m2i to m2 with the m2mod, I get the following error: Does that mean, that it doesn't even work, to attach the draenei tail to the human model? And if so, how can I work around this? Thanks in advance