Help Beginner user LEM12 PRO

Hi everybody
I’m a LEM12PRO smart watch user and new to it.
I have installed the FIRMWARE Z32-12PRO-20201102 update on my watch. But I have some problems.
The app where I downloaded the watch faces gives an error to connect to the internet.
When I enter the storage area, the names of the files appear, but these files are EMPTY!!!
I want to use my watch but my watch can’t do anything but google.
I know something is wrong but I can’t find what it is. Please help me.