Obsidian 1.8.9 can't open old vaults

There is a template when you create a bug report that asks for a lot more information.

  1. You could post your “Show debug info” here.

  2. And if you can, please show a screenshot of this message you’re getting.

There are also troubleshooting steps in the bug category that you could try following. About the Bug reports category - #11 by system