STILL keeps crashing/stopping on iPhone/ ipad

[stunty69]

hi. PLEASE help me. 

I love the music selection available and play through to my Samsung Multiroom through/via my iphone6 or iPad. BUT in the past 6 months or more it always stops during playback. Sometimes after one track sometimes though a track, just at random times. I have switched off, rebooted, de and re installed and it STILL does this. I pay for premium but seriously this totally sucks. PLEASE CAN SOMEONE RESOLVE THIS FOR ME!!!!!! Thanks