There's a problem with Zone 8. Find out what detector/device is on that zone and make sure it's closed/undisturbed.
Alternatively it could be a damaged wire.
Try omitting Zone 8 and see if it will set. If it does, it proves it's either of the above solutions.
If not...I ain't a clue!!!
I hate the Veritas panels with a passion...nowt but trouble in my opinion!
HTH Inglishg
Inglishg, April 2010