I get the following error when enabling unenrol completion status for course completion;
Invalid get_string() identifier: 'unenrol' or component 'moodle'
line 6079 of /lib/moodlelib.php: call to debugging()
line 6634 of /lib/moodlelib.php: call to core_string_manager->get_string()
line 110 of /lib/completion/completion_criteria_unenrol.php: call to get_string()
line 343 of /course/report/completion/index.php: call to completion_criteria_unenrol->get_type_title()