Game Crashing When Opening Modded Maps

When I open up a modded map (I only have one modded map) the game freezes an if I start clicking the 'close' button, the game stops working. I then have to close the window and start BeamNG up again; but before I can, a crash report notice pops up. I ignore it and I start the game up, open the modded map up, and it loads up hassle free. Am I doing anything wrong, and if so, can I rectify the problem?

 

I had a feeling it might have been this when I loaded the map up. But anyway, thank you for the advice!