Server lag and parties seperating

BUG
Server lag and parties seperating

WHERE
Frankfurt Charlie

WHEN
around 3.46 GMT +3

DETAILS
I entered a dungeon with a party,it seperated me from my party. When i exited,i was kicked from my party. Happened 2 times. Needs to be fixed. Also the server is very laggy and its not just me,seeing other people say the same.