can someone help me???

hello, well my problem is that when I export a model of sketchup to unreal does not leave a face of the model * look at the images * and I do not know what to do already try to change the texture of the model from sketchup or pass it to maya and expose it to fbx but it does not help at all, can someone help me ¬-¬ please? sketchup obj sketchup file