Make sure that you have enabled moodle networking enrollments.
Site administration -> Courses -> Enrollments
Then choose "Moodle networking" and set "allow all courses" to Yes (under moodle networking settings)
Moodle networking (MNet)
fail to add peer
ការពិភាក្សាត្រូវបានបិទ ដូច្នេះអ្នកមិនអាចឆ្លើយតបទៀតទេ។