Docker content isn*t Docker content is not rendered in the browser

Good morning,

I am using Ubuntu 22.04.1.

Recently I’ve had the problem that Docker containers that were already working can still be started as usual, but the browser shows a white background.

Only the icon in the browser tab is displayed.

This applies to the following addresses:

https://localhost
http://localhost
p://127.0.0.1
s://127.0.0.1
p://127.0.1.1
s://127.0.1.1

What can i do?

Thx for help