Quest level 20 Stigma training

Hello to all!! I would avoid writing but I cannot find valid detailed guides online. Unfortunately, I'm stuck. Can any saint help me? I'm stuck on mission 20 "level 20 [training], talk to erius .. but unfortunately if i click locate i can't load the map and i can't find this erius ...

I realized that it is not a mission of the campaign. Anyway, at the first level I'm at 20 and as you say Convent of Marchutan how can I get there?

https://aion.fandom.com/wiki/C…ridge%20in%20Pandaemonium.

I read thank you says to go to the Vifrost bridge excuse me game for a few hours

https://ibb.co/hW5hH5J thanks