He means stuck not crash, when he is trying to undock. Know the problem. Best is to make two savegames and safe everytime by changing both saves before undocking. If you get stuck load the other savegame from the former station or planet. After a while you know which station to avoid with different ships.
Other way: demount your whole equipment. Sometimes helpful or using strafe buttons and cruise speed to push your ship out with violence. Can take a while and is not working everytime.
In MP the admins can set your ship beside the station.
