[SOLVED]I can't teleport to endgame town after act 6

I just finished Act6 and finished a Tier 1 map. Then I teleport back to Act1 town to trade with people.

Now I can no longer teleport to endgame town. Mouse click on it from waypoint got no responding. I can see endgame tab, but not teleporting to anywhere in it.

Then I tried teleport to Act6 town, also stuck, it only allows me to teleport to "past" Act6 town and the gateway is silenced, can't enter.

I even tried a re-run into the Black Chambers, but after the fight, last boss won't say anything, his chat only has "Good Bye".

I now brick my character, I can't progress into endgame.

The end game town is in act6
Ziggurat something

Ah! Got it. Thank you!