We have tried to rollback by old check point, but getting checking server ready , please wait and final last got below error

We have tried to rollback by old check point, but getting checking server ready , please wait and final last got below error.

ERROR: command "wait.dpn  --runlevel=fullaccess --hfsaddr=naom2ave --verbose" failed, return: 256, exitcode: 1, signal: 0, dumped core: 0

ERROR: command "restart.dpn --nodes=0.0 --nocheck --nousestunnel --ddrollback=1" failed, return: 256, exitcode: 1, signal: 0, dumped core: 0

What is your next action plan, AVE issue still ongoing last 3-4 week. We need resolution on priority basis.