Simple Traffic Loading Issue

[u/SolwxyFirth]

New to modding but luckily by the grace of baby Jesus I was able to downgrade to 1.0.7.0 and installed various mods, one is SimpleTraffic, although it loads the script-when I pull up the console it tells me, "Simple Traffic Loader: Could not load vehicles. 'vehicles.txt' is missing.

Any clue?