Can't access my collection
Don’t you have any tomes of knowledge or experience scrolls? Simply use those if you only want to PvP. Alternatively, go level in WvW.
New players have to unlock PvP to access it, unless they know the workaround, so these unlocks probably aren’t going to change. If you have a higher level character already, you could wait for them to fix that problem with unlocks, but it would be much faster to simply unlock them again yourself. Simply create a new character and run through the hearts. It takes around 30 minutes to get to 6.