TruckersMP does not support the latest game version of Euro Truck Simulator 2 or American Truck Simulator yet.
Check out the following guide on how to downgrade so you can keep playing on multiplayer:
How to downgrade
With the development of the times, Scania has upgraded the V8 model. In the case of constant displacement, the weight of the whole engine is reduced by 80 kg, and one third of the components are redesigned, so that the engine has a longer service life and lower fuel consumption. Therefore, if you don't have any experience with Scania V8, if you have the chance to try it yourself, it will definitely leave you with a different driving experience!
13 May 17:20 UTC | [N.Six] - Ke Le