i was playing and everything was fine and then it froze and kicked me off and said it crashed

1.i got in to the game
2.logged in good
3.went into multiplayer
4.clicked on my favorite server that has no problums
5.started to play with no problums on the creative 1
6.tpa to my friend
7.double jumped to fly
8.frozed
9. took me to my launcher
10.told me it crashed