Any suggestions on recovering my playlists?

Well I switched from beats music to apple music (was the only option) and everything went well. I set up the new account and all my playlists from beats music transferred successfully. Now today I was on apple music and all of a sudden 200 songs disappear from my playlist. I've spent a year creating this playlist and it was pretty much the only thing I cared about on my phone. I check another playlist I had that had 200 songs and all those are gone as well. I was left with 100 songs from my roughly 300 song alternative music playlist and no songs from my 200 song metal playlist. I'm wondering if it is possible to re-sync my beats account to my apple account thereby recovering my playlist, or if apple can recover my playlist for me. Does anyone have any idea on what may have happened, and if so does anyone have any suggestions on what I should do?
Added (1). This was on my iphone 6 by the way

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