Error Rotation Object when add animation

I have problem with my object when i add animation. so i have a object in my project, i create this object in blender, i have been add animation to this object in blender, then i export it to fbx format, then i import to unity. when i import object, then show in on my app (without activate the animation), it run normal, but when i activate the animation in unity my object have error in rotation. so this the right position of my object ![![alt text][1]] so this the error that i tell before ![![alt text][2]] could you tell me what wrong with my object [1]: /storage/temp/13953-normal.png [2]: /storage/temp/13956-error_rotation.png