Lost Character

After not logging in for a long time, I cannot get into the game, I am logging into the same server I used before, "calacalamity(1507)", and all my previous orders are associated with this server. However, I cannot log in now, and when trying to claim gifts or spend GT Points, it shows my server character as Lv.0.Moreover, I can currently access other servers normally, but when trying to enter "calacalamity(1507)", I get stuck at the loading screen.

server：calacalamity(1507) stuck at the loading screen

server：Star(1591) can login game normally

Can correctly recognize the character name but cant log in