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 Server --> Statistics 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.