Index Server getting restarted continuously !

Hi Fraternity,

Index Server getting restarted continuously on one of our Quality System

Though work process are not filled up . the observation is many defunct Processes related to

backint are appearing in many as in abc.png ,

Additional info :

Below are the TDP Client version being used on this server

TDP 8.1.1.0
TSM client 8.1.4.1

abc.png

Please suggest