Audi a6 po441 code and it won't start
 

I have 2003 audi a6 4.2L and it didn't start on Sunday i was in a parking lot and my fuel was low so I thought it was it.so I put some fuel it started to shake couple times and finally started then I filled the tank.i went to work the next day no problems except little fuel smell. And Tuesday I started my car to warm up and left but when I came back to drive it was shut down.started it again and it was fine but after moving a half block it just stopped.i tried to start couple times it stall first but didnt start again.i check the code got po441 and base on info in forums I thought it was the canister purge valve solenoid and change it but still didnt start at all.please someone tell me what's wrong it at least I need to know what to change so I can save ridiculous repair cost.it still smells fuel inside the car. Thank you in advance