No open HTTP ports detected!

Hi, Render!

Suddenly I am getting No open HTTP ports detected. Just cleared cache and redeployed, but not luck.

The deployed web app seems to be working, but it is not being forwarded from the outside.

Aug 29 03:24:39 PM 2023-08-29 15:11:59 +0900 Thin web server (v1.8.2 codename Ruby Razor)
Aug 29 03:24:39 PM 2023-08-29 15:11:59 +0900 Maximum connections set to 1024
Aug 29 03:24:39 PM 2023-08-29 15:11:59 +0900 Listening on 0.0.0.0:3000, CTRL+C to stop

By the way, access from outside is error502.

I’m sorry. I deployed it again and it is forwarded from the outside successfully.
I don’t know the cause.

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