Make sure that tool_dataprivacy is installed on the system. Go to Site administration > Privacy and policies > Plugin privacy registry. View the list. Clicking on the links should expand into more sections. Ultimately there should be a description about the user data stored for each plugin. Currently there are sections that are not covered, they should show a small red icon which when you hover over it says "Requires attention". Verify that the information in the report is consistent with the information pulled from the metadata providers. e.g. Activity modules > Choice: You should see info about choice_answers content Antivirus plugin > ClamAV: The ClazmAV Antivirus plugin does not store any personal data. Run the unit test  vendor/bin/phpunit admin/tool/dataprivacy/tests/metadata_registry_test.php