Hi @marcosvinicius1987,
The way push notifications on the web work is that each device needs to grant permission to recieve those notifications. Progressive WordPress solves this by allowing you to display a button to your users.
To do this, you have to select the setting “Add notification button” in the settings under “Push Notifications -> Push Button”.
Now users who visit your site with a device that supports web push notifications should see a button at the bottom left of the page. Clicking on this button will register this device.
However, this may also result in an error. This is due to changes in Google Chrome and will be fixed with a completely new version of the plugin that I am currently working on.
Kind regards,
Nico