i have been getting the same error on the Moogle server.

Apparently its character specific because my brother can login onto the game on that server.

the whole veriety of errors i have been getting is.
10102
90000
2002
NA/EU servers not loading
JP servers not loading.
UI on character selection not loading
Start butten not working
Patcher startup taking over 5minutes.

cmon SE get your shit together otherwise people will demand a free month sub.