I just ran an upgrade following the manual installation instructions: https://knowledge.opsview.com/v5.1/docs/manual-installation. Now in the web UI I see "Opsview Apache Error: 500 - An internal error occurred". In /var/log/opsview/opsview-web.log I see the error "[Catalyst] [ERROR] Couldn't render template "file error - login: not found". If I run "/opt/opsview/watchdog/bin/opsview-monit summary opsview-web" I see that the status for opsview-web is stuck in state "Initializing".
I assume there is some kind of template cache that needs to be cleared but I can't see any information about this online. Any ideas?