Hey there! I think I know what's going on!
The handibot cut area is 6" x 8" (6 in the x and 8 in the y). If your cut file is on an 8 x 8 sheet, then it is going to try to travel too far in the x by exactly 2 inches.
If possible--I'd reduce the size of the cut to 6x8--or "tile" the cut in two sections. However, tiling is what I'd call an advanced technique in vcarve...so since you're new to CNC, I'd recommend taking a crack at a few smaller jobs first before trying to tile a job.
Brian