Troubleshooting

Start by noting the affected app or server, the time, the exact error and the last change. Avoid deleting a service as a first troubleshooting step: deletion can remove the evidence and data needed to recover it.

Symptom	Check first
App fails after changing variables	Environment settings, then logs
Data missing after an update	Persistent storage and the app’s configured data path
Domain or HTTPS fails	Custom domain status, DNS and certificate validation
Private app cannot be opened	Network enrollment, device connection and DNS
File login fails	File access, hostname, port, credentials and connection mode
VPS SSH times out	Console, server status and firewall
Paid order is not ready	Invoice status and provisioning status; avoid duplicate orders
BYOH is offline	Host connectivity, agent status and agent maintenance

Gather useful evidence

Copy the relevant log lines and error text, with a timestamp and timezone. Remove tokens, passwords, cookies and personal data. A screenshot of the error helps; include enough of the page to identify the control you used.

If a change caused the problem, record its previous value before making another change. Restore a backup only after understanding what newer data would be lost.

Open a support ticket when these checks do not resolve it.