ipad Air photoshop keeps crashing

Hi, i just recently bought an ipad air to use photoshop. I have the 64 GB ipad air, and the only app i have on it is photoshop. When i go to photoshop to work on my art, it crashes and says i do not have enough storage. I then go to storage on my ipad and see that "Other storage" is taking up 50 GB. Once i close photoshop, the "other storage" goes back to 8gb. Is there anyway i can fix this please