我很抱歉听到你被你朋友冤枉的事。
你可以向她解释，说那不是你做的，
或者你可以帮他找回丢失的钱，证明你的清白 ，
但是那不是容易的。
我希望这两条建议能帮到你。
给你最美好的祝愿。
I'm really sorry to hear you have been got wrong with your friend.
You can go explain, tell her you are innocent,
or you can find the lost money for her thus prove you are framed actually,
but it's not that easy.
Anyway, I sincerely hope my suggestions can help more or less,
wish you smooth it over eventually.