ManageEngine ServiceDesk Plus service (Windows service) starts and stops immediately, after upgrade to 9.4 Build 9400

After upgrading Service Desk Plus to 9.4 Build 9400 (self-hosted on Windows Server 2008 R2), I cannot access Help Desk. When I go into Services and start the ManageEngine ServiceDesk Plus service; it starts and then stops within one or two seconds. I read the following post [ https://pitstop.manageengine.com/portal/community/topic/unavailability-of-the-sdp-server-after-upgrade-to-version-9-4-9400-the-server-does-not-listen-on-port-80-8080-8-2-2018], and decided to try it. After following steps, the Help Desk starts within the command prompt and seems to run, and the SDP is accessible. However, the ManageEngine ServiceDesk Plus service does not run and I do not know how to resolve the issue permanently.

Thanks!