I play this game at low graphics and it works fine. However when monsters get summoned from party buttons, or when i start switch shooting or play lockdown, the whole game will freeze and become not responding. If i click the window again, it turns all white and it bascially becomes a non-moving screen. However just be leaving it not responding, the game never returns. Then when I try to open spiral knights again, a window pops up saying that "sorry, java is already running" or something like that. So in the end I have to restart my whole computer. When I do return im usually kicked from the party or from the lockdown game without the heat and the krogomo coin(s) respectively.

Is there anything that can prevent this? Or can I open spiral knights again without restarting my computer.

Thank you