Error: 403 Forbidden
A 403 Forbidden error typically occurs when file system permissions prevent
the web server from accessing the page or running a script. Please see Setting
File Permissions for more information on changing file permissions.
Error: 502 Bad Gateway
A 502 Bad Gateway error occurs when the front-end web server cannot
communicate with the application responsible for responding to the request. To
resolve this error: Confirm that the application is running. If the
application crashed, was terminated, or has not yet started following a system
reboot, the application must be restarted to respond to requests. If the
application was terminated, you will receive a notification email with
additional information. To restart the application manually, please see your
application type’s documentation or control panel entry for instructions. Most
stopped applications are automatically restarted during periodic cron jobs.
Please see the application’s entry in the control panel for details. Confirm
that the application is listening to the correct port. Check your
application’s configuration to make sure that it is listening to the port
assigned to the application in the control panel.
Error: 504 Gateway Timeout
A 504 Gateway Timeout error occurs when an application takes too long to
respond to an incoming request. This error is often caused by an application
receiving heavy traffic. This error can also be caused by an application
running to slowly; optimizations may be required to avoid the error. For more
information, please see the documentation for your application type.