Hi there,
I had a few failing attempts to upgrade our Jira Software 8.6 with Jira Service Desk 4.6 to the latest version by following this document:
https://confluence.atlassian.com/adminjiraserver/upgrading-jira-installer-938846937.html
I used installer method. In the document, it does not mention to stop Jira. Now, I have the following question:
Do I have to stop Jira before running the .exe (installer)?
I did try to stop by running stop-jira.bat & not stopping Jira. Both attempts I encountered this error.

I believe I should have missed something here. Please help.
If anyone went through the same upgrade process, could you please share your step by step instruction? or share which is the most appropriate document I should follow.
Thank you in advance
Ben