adobe express web page dont work

Hi. I've been trying to put web pages created with Express online for several days. The first time I use the link they work, then they don't work anymore. Here's an example
https://new.express.adobe.com/webpage/3zwoXgBc2aqbv
The only one that works is a page made with the old version of express
https://express.adobe.com/page/UZOuhAYdMxhJE
What's the problem?