In case you are experiencing the 503 error after you’ve installed the CyberPanel, then the following are the solutions you can try to fix the error.
Also please to read how to install CyberPanel on VPS.
How to fix 503 error after installing CyberPanel
1. Check Gunicorn Status
systemctl status gunicorn.socket
In case gunicorn doesn’t run, then start gunicorn using this:
systemctl start gunicorn.socket
2. You can set up virtualevn manually
source /usr/local/CyberCP/bin/activate pip install --ignore-installed -r /usr/local/CyberCP/requirments.txt deactivate virtualenv --system-site-packages /usr/local/CyberCP systemctl restart gunicorn.socket
3. You can also installing Logs
Albeit if you have done the above solutions but you still have the issue, then you can find out what the errors could be be via logs, so install the logs, that can be found at:
4. Submit the bug report instead
If all of those failed, then you are welcomed to submit a bug report. You will be finding the solutions.