Uncaught PHP Exception Drupal\\Component\\Plugin\\Exception\\InvalidDeriverException: "Plugin (entity.node.webform.results_analysis) deriver "Drupal\\webform_node_analysis\\Plugin\\Derivative\\WebformNodeAnalysisLocalTask" does not exist."

It looks like the class WebformNodeAnalysisAccess referenced in the webform_node_analysis.routing.yml file is also missing.

Here is the version to use in your composer.json file to revert to the latest working version:

dev-1.x#77beb04027742446bc478d290bcd1bd757888093

Confirming this error, and the version mentioned in #5 fixes the error

Did someone forget to add the new classfile on commit?

Yes, some file were missing from the commit. This is fixed now, see ✨ Allow to display analysis for all content types Fixed

Thanks for the fix!