I'm quite new to Xcode development, and I've been having an issue test-running my app. When I run the app on my iPhone from my Mac, the app launches properly and works initially. However, when I close the app fully and try to reopen it, it keeps crashing. This occurs whether I test on a physical device or an iPhone simulator. Somehow, this issue does not occur when the app is run on Profile mode. I would appreciate any pointers to debug this.