Hreen means missing textures. Did you convert tje textures and. Ace them at the right direction in your patch.
Tip: inside the options of mirror mashine you can set a path mm set for all textures. Else you have to place them all direct inside the mpq without subfolders. To get your problem fixed, open the wmo in 010editor with wmo template and have a look at you texture names and pathes there.