Hi, I am A. Stevens here to help with your question!
Since you are experiencing some software glitch issues, I would recommended backing up your device, and then performing a factory reset.
Here is how to backup your files and perform a factory resetGo to your app drawerFind the settings icon and tap on itscroll down to General tab and tap on it.Select Backup and resetTap on factory data resetRead the warnings and then tap on reset deviceChoose Delete All. This will then reset your phone and restart it.You phone is now reset. You will have to reset it and input the Google account you used to set it up the first time to retrieve all your data from before. Follow the steps set up by the app you used to back up your data, if you also did this.