Common Issues

Common Moodle support issues include:

Issue	Possible Causes
User cannot log in	Wrong password, suspended account, SSO issue, authentication plugin problem
User cannot see a course	Not enrolled, course hidden, wrong role, availability restriction
Teacher cannot edit course	Missing teacher role, editing disabled, category permissions issue
File upload fails	File too large, PHP upload limit, disk full, permission issue
Emails not sent	Cron not running, SMTP misconfiguration, mail server problem
Quiz is slow	High concurrent users, database load, question behavior, server capacity
Grades not visible	Gradebook settings, hidden grade item, release timing, permissions
Theme looks broken	Cache issue, theme setting error, custom CSS, plugin conflict
Plugin error after upgrade	Incompatible plugin, missing dependency, failed upgrade step
Backup fails	Timeout, storage issue, large course, permissions, cron issue