Hi Prakash,
Short dumps in your system can occur due to various issues. To find what caused the error, please look into TCODE ST22 and check for the time that the dump occurred and you can get to the right short dump to analyze the error. You could also refer to TCODE SM21 for system logs to have a deeper dive into the issue.
Managing Short Dumps - Test and Analysis Tools in ABAP - SAP Library
Thanks,
Sreedhar.