Xiomi BMS app for Iphone stop working

[arkap]

Hi there just wondering if anyone meet this :
Xiaoxiang BMS, 17S ,after Full setup app on my iphone was working good,but after 4 days of the application stop working,after reopen app and press any button or link, giving popup msg : "You haven't connect any device yet " I did try some simple action ,no luck. Any advice please.

 

[arkap]

I downloaded "MY BMS" app ,and now i can see ,it works but no much possibility to control as
Xiaoxiang app does.

 

[arkap]

Xiaoxiang BMS, 17S ,after Full setup app on my iphone ,it was working good,but on 4th days the application stop working,after reopen app and press any button or link , popup msg : "You haven't connect any device yet " I did try some simple action ,no luck. Any advice please.