Machines have been running well when they're going, however every now and again their hitting a bump in their script and i can't figure out what it is. it reports :

"LCD Not Found

BaR Group 0 (Date and Time of error)

Caught exception during excecution of script: Invalid property at sandbox......"

Ect, it goes on for a while but i can't type it all out. got a screengrab but don't know if i can post it here. Anyone had this or know how to fix?, i followed the basic setup, naming my assembler and BaR machines according to the setup and letting the script do its thing.