Note: You are currently viewing documentation for Moodle 3.8. Up-to-date documentation for the latest stable version of Moodle may be available here: error/moodle/generalexceptionmessage.

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.