Hi. I used AdGuard for Android. When I used this app in Wifi, It's working. But, I used the mobile data(LG U+,Republic of Korea), It's doesn't work. Why doesn't working in mobile data? I usually used mobile data. So I want to know how can I fix this problem. thanks. p.s. When I used this app ver 2.11, It still working. But I upgraded this app, then it's doesn't working. If I could downgrade, how can I do this?