If you don't want to lose all your saved data, this isnt for you and isn't 100% but it worked for me. My friend and I came up with this solution.
I was stuck in two clubs till I did this. I couldn't leave my club and couldn't join my friends.
I had to clear my cache and then delete NHL 14 completely from my storage and insert the disc and reinstall.
I was a 47 at first but I had about 80% of my xp. I was a 77 but was a 73 after and had none of my boosts.
After I played two games I got my stats to an A-, I then got the rest of my xp and boosts.
So really all you lose is you GM, ect..
Otherwise wait till EA fixes it.
Hope this worked like it worked for me.