Skip item id=xxxxx, both draft and published data are null

I have a website that’s updated from 7.x to 10.x. And everytime I ‘reboot’ the website (the app-pool gets started) I get a lot of warnings like this in my log:

Skip item id=xxxxx, both draft and published data are null.
kitNodeId	xxxxx
SourceContext	ContentStore 
ActionId	<<guid>>
ActionName	Umbraco.Cms.Web.BackOffice.Controllers.PublishedSnapshotCacheStatusController.ReloadCache (Umbraco.Web.BackOffice)
RequestId	<<guid>
RequestPath	/umbraco/backoffice/umbracoapi/publishedsnapshotcachestatus/ReloadCache

Does anyone know what this is and how to fix it?

Thanks in advance.

Kind regards,
Dave Jonker


This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/112733-skip-item-id-xxxxx-both-draft-and-published-data-are-null