error/moodle/nostatstodisplay
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Stats
This page can appear if you have not enabled statistics. To enable statistics, log into your Moodle as an administrator. Then, in the Site Administration menu, under Advanced Features ensure that they are enabled.
If you have enabled Statistics recently you should note that statistics are collected by a background task and take some time to become available. Try again later, but do note the time for statistics job to be run in the Site Administration page noted above.