I've been playing the mobile Stardew Valley since it came out and have really enjoyed the game. Unfortunately, I discovered a pretty game breaking bug after I got a ways into fall. On day 20 I decided to upgrade a barn that I was keeping two cows in. I know that upgrading the barn is the cause of the game crashing because the game would only crash on the night I decided to purchase the upgrade after I went to sleep. This isn't a problem with the location of my barn either. After finding out that the barn upgrade was causing crashes, I decided to build another barn and upgrade the new one instead. The game still crashes every time I try to make the upgrade. Please let me know if any additional information is needed, and please let me know if anyone else is having this problem. Thanks!
I've made a copy of your bug report in the Known Issues and Fixes thread here - https://community.playstarbound.com/threads/stardew-valley-mobile-known-issues-and-fixes.149599/