Log Locations
On each node, the panel writes logs under /var/log/tiipanel/:
app.log— general application errorsagent.log— background task/agent activityaccess.log— panel HTTP access log
When something needs support, attach the relevant excerpt (not the whole file) to a support ticket — timestamps around when the problem occurred are usually enough.
This website's own logs
If you're troubleshooting the licensing API itself rather than the panel, note that this website logs licensing checks, API requests, and errors separately — an admin can view those under Admin → Logs.