Either look at App Info in your on device settings or in a browser go to the play store listing and the package name will be in the URL
an invalid package name will lead back to the HA app, also this only applies to the action button itself if you selected the notification then you want to adjust clickAction
actions need to be in list format, right now its not formatted properly. I dont use Node Red so cant help there but hopefully that gives you a clue on what to fix