Helle Support,
every time we try to clone or backup our site from server to local we get

"Pulling ContentAssets

Error description:

undefined method `<' for nil:NilClass"

and the pull is stopped. All pulling before are fine,

"Pulling Site

Pulling Pages

Pulling ContentTypes

Pulling ContentEntries

Pulling Snippets

Pulling ThemeAssets

Pulling Translations"

but the ContentAssets crash.
What can we do to clean up the server so we get a working clone?

Thanks