Jka To Jko But I Get An Error

[[MoD]Odyssey]

 

 

 

Wth is this , ive come across before but this time its really in my way.

 

im trying to get the Rosh_penin model and skin from jka into jko but alter the skin to my desire. but i get that error when i select it.

 

Your help is needed

Thanks.

 

 

Odyssey