Error accessing SharePoint Online & OneDrive

Hello,

I'am facing an issue in my tenant with OneDrive and SharePoint. Since the renewal of my hosting (OVH) all users (admin included) on the tenant can no logner access SharePoint or OneDrive (all other services are accessible). Even the sharepoint admin center is inaccessible.

It seems like the adress XXXX-my.sharepoint.com is no longer there (I also have this message "DNS_PROBE_FINISHED_NXDOMAIN"). I looked all Microsoft Support discussions and nothing seem to tack to work.
Note that DNS entrees are good on my domain host (Exchange is working).

I tried to contact Microsoft Support, its taking a long time. And I need the issue fixed by monday..

Best regards,