Welcome to BVEStation.
If you look into the R68 folder, can you see a picture called Panel?
yes the panel.png
It means your pc can't handle the panel texture. We had to resize the panel texture on the R68 to make it usable in the Transit Museums's stock computers.
I have a panel I resized a while back http://www.mediafire.com/download/pqr0nbnzurul3mb/R68+Panel.zip
Check now