GSX usually causes FSX:SE To crash and I suppose this is also because of the restart coualt problem.Just wanted to confirm.
GSX doesn't cause a crash to FSX:SE, it's not possible that GSX could crash FSX, because GSX runs entirely external to it.
Yes, the "Restart Couatl" function is currently inoperative, and we are trying to fix it, but this won't cause any problems to FSX itself, you'll only lose the Couatl menu, but FSX will continue normally (without GSX, of course).
So, whatever crash you have in FSX:SE, is not caused by GSX.