Q:
Unable to do my story lines
If you are referring to Living Story Season Two, it sounds like you were online to unlock certain episodes when they were live, but not online to unlock others. You can purchase each one individually, or buy all the ones you are missing in a bundle for a discount. Check the Gem Store for prices.
Good luck.
With Living Story season 2 you had to log in during each release to unlock them for free. So it seems like you did not log in while episodes 2, 3, or 8 were active – so in order to play those three you’re going to have to buy them.