music randomly stops?

so I got my new phone yesterday, Huawei y320, it's okay for the price I paid, there's a few problems here and there but my main one is my music stops randomly whenever I click in to any apps that require internet like messenger, facebook, anything like that. It's fine if I'm texting and it seems to be okay with wattpad most of the time,(not always) but it's like running an app and listening to music is too much for the phone to handle or something? so annoying! I've looked through all the settings and can't seem to find anything.
I mostly use my phone for music so it's starting to really bug me, and I will take my phone back if I can't fix this which is going to suck.
Thanks in advance