MSTS+ADFRR=%@#$!

Hi everybody. Yesterday, I finally decided to cross over to the dark side...and start adding stuff to Microsoft Train Sim (ver. 1.2). I've just installed the A Dual Fictional Railroad, and now, regardless of what activitys I use, I get this error...

The sim quits to the desktop when this happens. After a few minutes, MSTS resumes to the Drive a Train page. Does anybody have a soultion for this. The MSTS system of addons is still fairly new to me (whish is sad, since I got it when it first came out!) so use short, weekend-blur-friendly sentences! ;)
Thanks! :)

The sim quits to the desktop when this happens. After a few minutes, MSTS resumes to the Drive a Train page. Does anybody have a soultion for this. The MSTS system of addons is still fairly new to me (whish is sad, since I got it when it first came out!) so use short, weekend-blur-friendly sentences! ;)
Thanks! :)