Hi,
Thank you for the follow-up.
Please have in mind that both Gutenberg and the Gutenberg extensions are currently alpha versions, they are work in progress. Having said this, I also wanted to mention that we cannot take users’ credentials and login to their sites, you can read more in our terms and conditions here.
From what I can see in your screenshot, it seems that the old screen of the events calendar is being displayed. Please have in mind that the Gutenberg extension requires having Gutenberg installed an active in order to work.
Best,
Juan.