Discourse Custom Wizard main does not work on tests-passed 3.1.0.beta2( d33d98f9c1)

fyi, the plugin is currently not compatible with the latest tests-passed version 3.1.0.beta2( d33d98f9c1 ) of Discourse.
I had to disable it in app.yml in our Discourse instance otherwise the rebuild of Discourse did fail.

fix has been implemented by @merefield

Thanks you guys for the quick fix.

This topic can now be closed.