I've been using a guitar crybaby with my bass lately and now its stopped working all of a sudden with no sign of any problem, have I broke it by using bass through it?
No, the bass shouldn't have broken it.

It'll be something else.
In the bass chat:

<Jon> take the quote of me out your sig plx
<Jon> i hate seeing what i said around lol

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Try replacing the battery, if it's not that it might be a connection problem.
So that with good courage we say, “The Lord is my helper. I will not fear. What can man do to me?”

-Hebrews 13:6