Hiragana Battle - Educational japanese language learning game App Reviews

It seems like a fun game. I would give it a higher rating if I was able to see the characters, but all of the boxes are blank so I have no way of knowing what to click. Please fix this. それは楽しいかもしれないが、私は何を見ることはできません。ボックスは空白です。この問題を解決してください。私は高い評価が得られます。

The images that should contain hiragana are empty.