The latest release has a new database engine and in rare cases, the database fails to update properly. It sounds like your hub is one of those cases. please perform the following steps:
- Go to Diagnostic Tool
- If you don't have the latest Diagnostic Tool (version 1.0.97) then follow these instructions to download the latest version.
- Perform a Soft Reset by following instructions in this document: Soft Reset | Hubitat Documentation
- Once the hub is back online, restore from a backup.
NOTE if the hub was unable to install the 2.3.3 platform version, and your hub is still showing that is running an older version, then go to the Diagnostic Tool and select "Download latest version". Once the download completes, click "Restore previous version" and select the latest 2.3.3 version.