Hi Praveen,
It is quite difficult to resolve such kind of issue on the forum.
Please open support ticket and we'll proceed with it formally.
To start analysis I'll need script folder, dump of the crashed process, LRDetect report from the Vugen machine, HP.LR.VuGen.log and HP.UTT.StandaloneDebugger.log files (in case of any difficulties support engineer will help you to collect all these data).