It might be working fine for you if the DNS server you're using hasn't propagated this change yet. The Google DNS server has: https://dns.google/query?name=t.me&rr_type=A&ecs=

Suspended means the "serverHold" status. I haven't found any official blog post/announcement yet, but the status is unambiguous, and the fact that it happened to one of the Telegram's main short links means that it might be related to legal matters.