I'm using Moodle 3.9.1 (Build: 20200713) version when I go to the "LMS" -> "Calendar" it will appear an error message with subject "generalexceptionmessage" contain "Exception - Call to a member function get_proxied_instance() on null"(check attached picture)
Any advice? or if anyone has been facing this issue how can we resolve it? because I'm blocked to see the calendar events.
Thanks in advance!