It just cannot display any content. I assume you have not updated something. (Infusions need to be fully updated as well.)
Note: homepage only displays items from articles, blog, downloads, and news, so if you don't have any of these infusions installed, you'll see this text.
We have released update v9.10.10, update system via System Admin > Upgrade, maybe it fix this issue. Don't forget to create backup, since this new auto update system is first version and was not tested on multiple hostings.