Segmentation Fault / Speicherzugriffsfehler Problem:
check your Gameserver_d,
if 19,2 MB (20.222.834 Bytes) -> Gameserver is OK
if 19,3 MB (20.273.055 Bytes) -> Gameserver is wrong -> Segmentation Fault / Speicherzugriffsfehler
if 34,5 MB (36.262.790 Bytes) -> Gameserver is OK
You downloaded a wrong Gameserver, no one will help you to find the correct one.
Relog (Recall?) Problem:
Your mysql server has some wrong global variables, you don't need to delete t_users, only a_login_time is wrong.
You need a other gameserver