I've just installed and configured this plugin on moodle 3.5, but when I try to assign "course enrol confirmation" as enrollment rule in a course the system gives me an Internal server error:
"Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at firstname.lastname@example.org to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log."
Can you help me?