Sitemap could not be registered

I sent it from the search console a long time ago, but I got an error saying it could not be retrieved...

I checked the file description, that it could be accessed from the browser, and that Google's robots had not been banned.

But it said it could not be retrieved, and no matter how many times I tried, it didn't work.

I googled it,

https://yuuma.xyz/sitemap.xml?1

It seems to be fine to send a query like this.

However, right after sending it, it has a bug like this. It's annoying.

After messing around with it, the display finally changed.