is no more accessible on mobile data with ATM (Algerie Telecom Mobilis) aka with it’s ASN ID : AS327712.
We mention that the site can be accessed for user coming from other telco operators (both mobile and landline) : AS36947 ALGTEL-AS, AS327931 Optimum-Telecom-Algeria, AS33779
The website was working with SSL for all telco operators before adding to Cloudflare
Okay. This seems the ISP is blocking the traffic to the website / those IP address ranges. You may better contact your ISP in this regard to unblock. Here, Cloudflare cannot be of much help. However, this #CommunityTip may help.