Hola! This had to do with the site being down yesterday and should be working now. Let me know if you come across it again!
The team is working on a solution for this!
For now, we'll keep the side bar and review how readers (and commenters) adapt to the change over time.
This was done on purpose - only the main category will be visible on that screen. This has been the same for premium content.
This is an issue with the mobile page - our team recommends using the app for now.
There were some more issues pointed out, but the team has been working on hot fixes, so you should already see improvements for issues like Ads not fitting.
Thank you for your continued feedback, which I will keep sending to the team as it pops up. I'm looking forward to seeing all of your banners back in action again!