Secure connection failed for main cloudflare website

Hi !
I’ experiencing a weird behaviour… as i’m unable to connect to the main cloudflare login page… i got the secure connection failed error.
Again this is just the main site… not my website.
A client told me that he also can’ access my website with the same error.
Very confusing… i can’t access cloudflare site but can access my site … and in the other hand my client can access cloudflare but not the site !!

can you share the domain of the site your client cannot access? Cloudflare site loads fine for me.