Brake light randomly on??

[Philbar71]

So a few weeks ago I slid in a ditch. No major damage (that I know of) but a bent up brake line. The brake light was on after the accident. That was fixed and is leak free. Me and my dad bled the brakes properly. and the light went off about 3 days later. However it came back on about 4 or 5 days ago and has stayed on. What could cause this? The fluid level is fine, its actually over filled by just a hair to be safe. There is no air in the lines. The brakes feel excellent just like they always have. Could it be that the fluid level sensor went bad randomly? Or is it something else?