Problem with Qardio app and device.

I was wondering if anyone is still using any of the Qardio devices with the Qardio app? I haven’t used my Qardio arm blood pressure monitor for quite a while and when I tried to use it today, I couldn’t even sign in. It said that the server was unreachable, and I read a lot of Things on the Store from other people about having the same problem. There were rumors that the company was going bankrupt. Then I couldn’t even take my blood pressure with the Qardio arm device because I couldn’t even get it to Bluetooth to my iPhone 15. And I tried replacing the batteries. I was just wondering if anybody had any suggestions?