When the portal to Avlis, or Arkaz, or any other world in which we may be linked to, is not working, you CAN not just go and log into the world in which you were trying to get to. This constitutes World Hopping, and also can fall under duping, both of which are a BANNABLE offense.
If you find a world portal that is not working, you should 1: Confirm that it wasn't some fluke by waiting a few minutes and trying again. 2: Check and see if anyone else has reported that the portal is not working. 3. Report it yourself if no one else has. 4. Await the teams response and instructions before trying to continue use of the portal.
Yes, we know that sometimes there are events that you may be involced in, or think you need to be present for on other worlds, but taking matters into your own hands and World Hopping, may get you there faster in the short term, but in the long term, it probably won't matter as much if you are banned.
Honestly, all of this should have gone without saying.