creative spawn death

I was on creative (server 2) with my friend zeusoflightening, when this guy (cant remember his name) came to our plot and put in a hopper a diamond sword renamed 'god sword' or something. when we right clicked it, we got speed for around 5 seconds, then our games froze. we exited minecraft, then when we tried to log back on, we just spawn dead, and when we re-spawn, we die instantly, so we cant play any games. Please help us as we can no longer play on your server! D:
this happend around 5:45 on Wednesday 29 January.
my IGN: bobgoesboom99
my firends IGN: zeusoflightening

 

Same exact thing happened to me, I was at the same plot with a lot of people and i'm still dying

IGN: Falloutgurl13