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Hope she's healing up well!
Is it really a removable chainring? AFAIK Beinns come with a non-removable chainring, so the chainring is permanently affixed to the crank-arm. I'm guessing that you're looking to replace the entire crank and that 135 is the crank length, rather than the chainring BCD , in which case the 34T 140mm will fit fine (plus, I've never heard of a 140mm BCD chainring, so what else would that be).
Photos would be invaluable here.
Many Thanks @MCamb I think you are right, it’s 110mm BCD, so doubt it will fit.
@ltc She is 11! Was an awkward fall, Where I think the chainring took the impact (she’s fine, bike not so much)