PWR light issue and no brake fluid after winter storage

[magpie]

Hi!

So I just took my car out of winter storage, and 2 problems has suddenly appeared out of nowhere

The first issue is the brake fluid. The master cyl cup was empty, and so was the brake lines. Strange thing is that I can't find any trace of leakage, I've checked the brake lines following them the entire way under the car aswell as around all calipers. I've filled the cup back up and bled the brakes, and they function fine.

The next issue is the PWR light, it stays on all the time. I'm 99% sure the ECON light still works, as the PWR light stays lit the entire time.

Anyone got any clue as to what has caused these problems or got any tips on how I can troubleshoot them?

Cheers!