type error

[Smitty010]

When Obsidian starts up, I get 50 of the following errors:

Uncaught TypeError: Cannot read properties of undefined (reading 'SecondBrain/FileClass')
    at FileClassFolderButton.addButton (plugin:metadata-menu:25423:44)
    at eval (plugin:metadata-menu:25413:14)
    at e.tryTrigger (app.js:1:722881)
    at e.trigger (app.js:1:722814)
    at t.trigger (app.js:1:2027977)
    at FieldIndex.fullIndex (plugin:metadata-menu:23929:35)
    at async eval (plugin:metadata-menu:23866:9)

The icons no longer show on the class files in the fileclass folder. They do show on the regular note files.