Please Help

I really need help...sorry for so many posts. I recently tried to repaint CSX SD70MAC #4500 "Spirit of Cumberland" and , using RSBintool, exported data, edited the file etc. When I selected import DDS, an error message comes up saying "There are not enough MipMaps to replace the data." This is really annoying and I would gladly appreciate any support from you guys!
Thanks once again!

Thanks once again!