Hello Abu
The trans.log file is not complete.
What was the return code when you executed R3trans -d under sidadm ?
There are no errors found in the log you have attached.
If the return code is 0000 then it is most likely an issue with the OS.
In that case could you restart the server and then start SAP and then closely watch the event viewer logs in Windows when the system crashes.
Also check the developer traces (dev_w0, dev_disp, dev_ms) when the system crashes.
Regards
RB