Hello community

I've got problem with my character/account. I was in the middle of quest, road to dragon Master Xu's lost treasure, and when I talked to Xu other quest icons disapeared, also when I clicking quest in the quest window I can only read that I must visit Piao Daiming in Lushan and doesn't shows where i have to go. However when I'm talking to him nothing happens, and there is no quest after leveling up.

Please if anyone has the same problem and solved it, help me please.

P.S. I hope that I described problem as clear as possible.