TruckersMP does not support the latest game version of American Truck Simulator and Euro Truck Simulator 2 yet.
Check out the following guide on how to downgrade so you can continue playing on multiplayer: How to downgrade
Must have Discord. Must have working Mic. Must be respectful. Must be able to drive for at least an hour at a time. Must always complete your loads when possible. Must be okay with being on streams.