I think it's an incompatibility problem。
I have received the same problem from other players, please wait for the solving announcement given by the game's official，or you can delete some software and try it again. I’m so sorry.
so bro where you from？ if you from JP i think you should download JP Vgame it is better to you.
谷歌翻译:仍然有6GB的内部存储器，但是为什么不能安装。 即使它符合具有Android ROM库存的Android 9的规格。 请帮助我，自从第一次CBT以来我就尝试安装它
wht type of ur phone，can u tell me？