can' t apply the theme

Hi! I have created a theme and on my phone work , i have passed this theme at my friend (he have Huawei p8 2017, i have honor 6x) but when he try to apply theme klwp not say anything,( when you set apply/save and the app say wallpaper fix, You touch and set apply) on my freind's phone not work and not appear nothing... He Save but wallpaper not change... I have also try to install nova Launcher and change the wallpaper on nova( on my phone the live wallpaper work only in this way , i mean i can 't scroll the live wallpaper because is Stuck on only one screen). The both phone not have root ... Any suggestion or fix? Thanks for this Amazing app