Won’t let me makes call – Talkatone: WiFi Text & Calls Review

I used to app for over the last year I make call an texts in it everyday then to day I try calling my mom like I always do on Sunday an not one call or text would go out or ring could you fix this please I tried reinstalling the app an it still didn’t work
Review by Megatron CRT on Talkatone: WiFi Text & Calls.