Thank you for your response. I tried the method with "CRTL + F5" but it doesn't work for me unfortunately.
I tried with Internet Explorer and Google Chrome at 8am, 12am, 8pm, 11pm UTC.
I've been trying for three days.
My Internet service providers: Orange and Bouygues Telecom.
The NA dashboard work today but when I click on Europe (on main page and NA dashboard), I go back to the main page of the website again.
EDIT : 12AM UTC it's work !