My Forge Tunnel crashes

Hi, I get this error when I start the forge tunnel:
Screen Shot 2021-12-21 at 15.48.37

I was having this issue while I was developing a Custom Field Type.
So, I wanted to test for is it for only cftype error or not. But it makes no difference.
I created a Custom Field project with forge create and didn’t do any change on code and installed it on my domain. And I typed forge tunnel and refreshed my associated screen and this screenshot is what I get.

Do anyone know, what is causing this or how can I fix it? Manually development is really time-taking. Forge Tunnel is really important to efficient coding.

Mert.