Reading the error log

Error Log collects the failures the product caught while serving a request, newest first. The menu item only appears for roles allowed to read it.

1. Select Error Log in the menu.
2. Each row carries when it happened, the response status, the error and its message, and the request that triggered it.
3. Click a row to open its stack trace underneath. Click it again to close it, and only one trace stays open at a time.
4. Click Load older at the bottom to pull the previous batch. It stops offering once there is nothing older left.
5. Click Clear log at the top right to delete every recorded error. There is no undo, and the button is only there for roles allowed to delete.

Quote the time and the message when you report one of these, and paste the stack trace in with it. That is usually the whole diagnosis.