Hi,
New course button on the dashboard gives this error : line 100 of /course/edit.php: call to moodle_database->get_record() on moodle 3.11.5
This is a known problem on various sites and it's not fix.
Condition : I've previously delete the default category called miscellaneous.
Cause : The New course button on the dashboard refers to course/edit.php?category=1
Note that the new course link in the administration menu refers to course/edit.php?category=0 and this works.
Solution : change the link for the new course button on the dashboard to course/edit.php?category=0
Note that there's the same problem on the homepage.
Thanks for the theme.