Please clear the cache, close the browser and try again

This morning I completed the “PDF Automation” when I click on close button, it kept turning, so i closed the window. Now I can’t access to “https://academy.uipath.com”, I have the following message “Oops! Something went wrong.
Please clear the cache, close the browser and try again.”.
I cleaned the cache, closed the browser but it doesn’t work.
I tried to access with another browser, but I have the same error.
I tried to access by my smartphone and I have the same error.
Please someone could help me?

Now I tried, it works!

I just waited about an hour