Web Server Down 521 Easyengine 4.12 to 4.13

i update my easyengine 4.12 to the latest easyengine now all my site is web server down

That’s because nginx_proxy container keeps restarting. You can confirm this by typing docker ps.
If you notice that specific container restarting, you can stop it with docker stop CONTAINER-ID and finally you can try restarting it with docker start CONTAINER-ID