The Icinga Web 2 interface shows under 'History > Graphite > Error' a message: DirectoryIterator::__construct(/etc/icingaweb2/modules/graphite/templates): failed to open dir: File or directory not found Reproducible: Always Actual Results: this helps: mkdir -p /etc/icingaweb2/modules/graphite/templates chown -R apache:icingaweb2 /etc/icingaweb2/modules/graphite
Check your perms on the modules directory itself, the directory should be created by the web frontend if that's correct.