HTTP 500 Internal Server Error

In short: An unexpected error occurred on the server.

In more detail: A generic server error without detail. The cause is in the server logs.

In Depth

Possible causes

• Program error (exception) in the backend.
• Wrong configuration or missing environment variables (environment variables).
• Database not reachable.

Solutions

1. As a visitor: try again later.
2. As an operator: read logs, fix the failing spot, check database connection and configuration.
3. Set up error monitoring.

See also: HTTP 502 Bad Gateway, HTTP 503 Service Unavailable, Backend