@officeit if you used the Linux installer it's most likely because of an issue with the installer not moving your SSL keystore back into the appropriate spot. So basically the JSS is running but can't serve https connections. The fix is simple though.

Go into /use/local/jss/backups and navigate to the latest backup the installer made and go into the tomcat folder and copy the backup of your keystore file back into /usr/local/JSS/tomcat/ and restart tomcat. It should load up now.

Thanks @chriscollins This ended up being a certificate issue. As we have our own cert instead of the JAMF issued one, things got a bit screwed up during the upgrade. But we figured it out. Thanks for the reply!!!!