I do not know blender, but errors say what is wrong, read errors messages.
It is not error in texture, two meshes are messed up. bombom_box and bombom_sphere.
Looks like you forgot to do last step before exporting, like welding all verticies, remove collapsed ones etc. Not sure about blender again, but to me looks like you did not change those 2 primitives to polygons, they are still as box and sphere when exported.
Also unreal complains about missing smoothing groups and probably UVs.