Help pls <3

Hello, i have had beamng for almost 2 years now and fro about a year and a half it's not been able to update, but i'm quite lazy so i didnt do anything about it. My bad... So my friend told me that you can turn the order id into a steam key through http://beamng.com/service/latestorder but now it says 'the requested page could not be found' . is there any other way i can activate the game on steam (via steam key).

PS this is the error message i get when it tries to update, if it helps.

 

http://wiki.beamng.com/Updating_the_game

 

thank you haha, i didn't mention im fairly dumb