Yup same here. Timers still running in the hub but can't access it through the App. Even the Insteon message board seems to be offline.
I had just started the transition from Insteon to Shelly on Home Assistant. I guess I need to accelerate that now.
I've got a ton of Insteon stuff. Some still in unopened boxes. If any one needs modules I will have no shortage of them. Feel free to pm me. I'm near Toronto Canada.