Still there on mine either on the myo2 homepage or under tariff details
No info re phone, so first thing to try is to reboot your phone (Turn off and back on) Next check whether you are due an update. My phone is a Samsung Note 10 and it was updated this morning.
If none of those work,then ring the manufacturer. You can find the number via google.
Hope that helps and welcome to the forum.
Veritas Numquam Perit