The authentication servers are not reachable.

Please see if community support can help resolve the ingame issue.

Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support (Technical Issues) – 📧 Microsoft Support (Account Issues)
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki

Going from your recent change to the descrption of the issue:

There is nothing anyone can do if the links are banned by government.