Website loading issue

I've noticed recently that one of my three websites has issues loading.

On a few different occasions, I tried accessing them at the same time, and one loads, while the other simply does not.

This is not always the case, but it's happened enough times that I thought to report it and see what might be causing the issue 🤔

This was recorded yesterday:

And this second video was recorded today:

Logs:

The website in question is https://arcadia.did.life/en