When you get ZixZax to translate the 4 parchments to get the password, it should allow you to use both teleporters (the one to Naberius' storage and the one by Lovis' tower).
That teleporter takes you to the top level of Lovis' tower, where you can find a chest. I left that until I was level 18 (having done pretty much everything in Broken Valley and a bit of the fjords) and got an amulet suitable for my ranger (+2 Explosive Arrows, +5 Dexterity, 2 charm slots and 1 enchantment slot).
After you take over the battle tower you can reach that area without needing the teleporter, but the chest will be gone.
Try talking to ZixZax again and go through any speech options about the 4 parchment scrolls, if available. Try using the other teleporter again.
Maybe enter a building and leave (or take the mountain path to the far south west in Broken Valley to the fjords - the start of that area is safe), to see if getting the game to reload the area will get the teleporter to recognize that you have the password.
Welcome to the forum.