Major oil leakage on a leanardo aprillia 125cc?

I recently came home on my aprillia (its an automiatic drive) it was running fine untill about 200 yards from my home (i was going 50 mph just i live in the coutry) the engine cut out it started to die went on low revs then stopped.. and I noticed their was oil everywhere I managed to wheel it up to my drive and pulled the side pannel off noticed the dipstick for the oil was missing so my question is.... what can I do to make it run again I havent tried to start it because I don't want to damage it... please help me get my bike on the road again would puttng oil in and buying a new dipstick solve the problem? or any suggestions or ideas on how to get her going would be apreciated