IS doesn't work

I restart the IS service and I have the following screen as home page on IS (5555). (Attechment file)
It’s new and I don’t know why

Try in your URL to add at the end HTTP[S]://[:]/WmRoot
Does it change what you see?

Yes it’s work.
But do u know where it is coming from ? And how to fix it ?

It look likes a default home page wich is not redirect

Looks like the Default package might be the issue, try loading/installing that from other instance, make sure you back up the current.

Ur right it is exactly that, I deployed the pre prod instance default package and it’s run now.