why apps close automatically

[Android Central Question]

i have a problem with Samsung galaxy grand prime plus that apps are automatically close while using and back button stops to work meanwhile

 

[Laura Knotek]

Welcome to Android Central.

Unfortunately, your phone only has 1.5 GB of RAM, which is not much by current standards. Please see the specs from GSMARENA here: https://m.gsmarena.com/samsung_galaxy_grand_prime_plus-8385.php.

You'll probably need to run fewer apps in the background to avoid that issue.