Everything is "Impervious to attack"...

[Mythryndel]

I am new to the game, and I think the graphics are incredible, and you have done a wonderful job with creating this world and a lot of content.

However, I am getting very frustrated. I understand the glitches and hiccups due to a major roll-out. I am disappointed that I have not been able to do much this weekend due to server outages. I believe that the servers are back up and stable, but  I am unable to continue my character because I am out of progression points, and I cannot attack/kill anything in the game to aquire more. Is this an issue with just my character or is this server-wide?

[Karyuu]

It's a server issue. This topic has more info under Common Problems:

» Q: I am trying to fight an NPC, but I am getting a "NPC is impervious to attack" message. Why is this happening?
A: This occurs when NPCclient, a separate application that controls the behavior of NPCs, has gone offline. There could be various reasons - a technical problem being the most common, where a developer took NPCclient down because it was temporarily interfering with other work. When NPCclient is unavailable, NPCs cannot offer or continue quests as well as attack. Please wait patiently until it begins to work again.

It's been known to be finnicky every now and then, but usually returns before too long.