Often, the cause will reveal itself with the corresponding fix. There may be a glitch or a problem with the software or a particular app. The culprit may be a slow processor, insufficient memory, or a lack of storage space. There are several reasons why an iPhone, Android, or another smartphone might freeze. This will often clear the memory, and cause the device to start normally. Do this for about 20 seconds or until the device restarts again. Press and hold both the “Power” and “Volume Down” buttons. How do I fix my android stuck on startup screen?
Another reason for Android apps crashing problem is the lack of storage space in your device.
This usually occurs when your Wi-Fi or cellular data is slow or unstable, and apps tend to malfunction.