Error accessing database version 9

Short answer: Go back to the version you were using.

Long answer (I am sorry for my part in making it a bit too long): Release: 2.0.4.23 (beta) 2019-07-14

You are not the only one tripped up by the versioning scheme. Release 2.0.4.23 is not a successor of the release from which you upgraded. The release channels are separate, and generally, you cannot jump from an experimental or canary back to a beta.