error/moodle/generalexceptionmessage
From MoodleDocs
A general error occurred (sorry we can't be more helpful here!)
You could try copying the text that was shown and doing a web search with it.
Note: You are currently viewing documentation for Moodle 3.11. Up-to-date documentation for the latest stable version of Moodle may be available here: error/moodle/generalexceptionmessage.