Red Diamond error

[kevindijkstra1]

Helllo, I'm in between a rock and a Hard place. I'm getting a red arrow/diamond thing on Basegame outfits. On Female armour and clothes, 

 

Been using COCO LE SMP-HD, While trying to build a set of outfits something went horridly wrong no idea what

[pantherlux]

i think you talk about skyrim (LE)
a red diamon shape with a " ! "  inside?
seems like the mesh is missing.
i would suggest to redownload and/or reinstall the mod (maybe the wrong body type can cause such problems too. never used coco body myself, sry just a guess from my side here)