EV 7.5 Task controller issue

Dears

My EV version is 7.5 and as version is obsolete I wont get support from symantec call support.

My problem is now the archiving, restoring task are not working now.
This. I bilieve, started after I restart the SQL server due to some toher issue. That wa the only thing happened yesterday.

When I am restarting the Enterprise Vault Task controller service, I can see a little change in the MSM queue that the 'enterprise vault storage archive' is growing.

So it is working when restarting tasl controller service. There was a similar problema nd Symantec rectified it and that time this version wasn't removed from service request.

Please request your help at the earliest