My phone camera is broken!

Sep 21, 2018
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Ive been taking photos recently. Then I've used flash and the whole screen goes bright and then snap, it looks like this: https://photos.app.goo.gl/qfhKLMe5ZpxfT8Qj8
It looks moist or scratched,huh. Well, my phone dropped on the a-little-bit-too-wet floor.
It is working perfectly fine when I dont use flash.
What can I do?

Phone model: (Sony Xperia Z C6603)