Phone can't reach buildbot.libretro.com (SM-J100VPP)

So I’ve been working with someone on another thread trying to get retroarch working on my new phone. We came to the conclusion that everything I do in the updater fails and whatever that is it’s trying to do right when the app starts (something about “assets”) also fails. I realized a moment ago I had a spare phone so I tried it on there and it worked fine. So this is apparently a problem with my phone, the Samsung Galaxy J1 (model number is SM-J100VPP). Anyone know how to resolve this issue?