I seem to brake minecraft it keeps crashing the mutible mod worked before?

Maybe it's because your device is slow?

I don't know, but why don't I move your question over to the Games & Recreation > Video & Online Games category where you may have a better chance of getting an answer. (That's one of the things the Edit button beneath your question is for.)
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Also, just FYI, 'break' and 'brake' are two different words.
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(Brake =/= break.)