Love it!!!! But... Please read any iPhone 6/ 6s people

This game is amazing.... I love it! But one day I deleted it for more space cause I had next to no space remaining on my phone. But then about a couple weeks later from that day (yesterday is when I re downloaded it. Decided to give it a day and try again before writing this.) I re downloaded it and when I went to open it... it crashed. And it just keeps crashing!!!!!! Idk what the issue is. Im rating this 4 stars because its a great game and this issue may have just recently shown up. PLEASE FIX THIS!!!!!!

Thank you

Max838383039 about SUPER MARIO RUN, v2.1.1