There is currently a broadband fault in my area, the My BT app knows about it and I can check the status of the fault
Helpfully as soon as I click on the "Check my service" the app closes 🤔
Thanks for the report @gibbylinks - it looks like the data isn't quite right, which is causing the app to crash.
You can check the service status yourself on the web site: BT Service Status | Check Broadband, Landline and TV | BT Help