My 2001 ford focus shakes a lot in the steering wheel after I put wheel spacers on, what happened?

My 2001 ford focus shakes a lot in the steering wheel after I put wheel spacers on, what happened? - 1
Added (1). I put wheel spacers on my 2001 ford focus and now the steering wheel shakes and shakes a lot when I drive and brake at high speeds, are my rotors warped? What caused this to happen and how do I fix it?

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