Keep getting disconnected from server (error code 90000)

I was playing in Tonberry server.
Just got disconnected while in a instance with error code 90000.
I tried to log back in again but got disconnected again.

After successfully logging back into the game. After some moments I got disconnected again.

Its quite frequent and random now.

Please fix it.

same issue...
plz solve this ploblem

Same issue here, playing on Cactuar - just been disconnected twice in the space of a couple of minutes, doing nothing more than moving a few steps in the area my character is in.

Same here in Excalibur . . . . .