2010 Toyota Yaris Failed Turn Off Engine Since 23 10 12 Found Out About This On

I failed to turn off the engine since 23/10/12 and found out about this on the 25/10/12. The engine was already off and If I turn the engine, it does not turn on anymore. When I tried to close the doors uising the remote key, the doors did not close. When I checked the fuel tank, it was empty. It was almost full when I turned it on. What do I need to do? Thank you.