We released a compatibility update for WordPress 5.6 version. Please update YellowPencil to latest version 7.3.2. You will see an update button on your WordPress Dashboard within 24 hours, you can update it by clicking this update button.
If you don't see a update button or don't want to wait, you can update the plugin manually. Follow the steps in this article to manually update the plugin.
Ok. I will update to 7.3.2 once I see it is available. Thanks, Johnny