Can’t Login – Girls' Frontline Review

I’ve been playing this game for awhile now, and I really do love it. However, as of a few days ago, I cant login into my game’s account through Game Center no matter if I restart my phone or delete and reinstall the game. I’m playing on a completely updated iphone 6, with no history of this issue happening before.
Review by Ripjaw2000 on Girls' Frontline.