Hi Soohyeong.
I am a user of ArrimOne on Motorola One Zoom and I have probably the same problem. When I start the app, I got a message "Your device will be supported soon" and app crash, I have wrote to developer many times to get answer what is wrong, but I dont get an answer... So I think it is necessary to make a pressure to developer to solve the problem...
What is your opinion?
I wish you better luck to get your phone working wit ArrimOne...