[Think i broke my server again...]

I am an idiot and i know it.
I was testing out some command blocks, especially the repeating one. Then i put in "/gamerule randomTickSpeed 1000000"
and activated the switch. The entire server broke in about 1 second. And i cannot rejoin. Learn from my mistakes.
Anyways i need to find a way to rejoin. Help is much appriciated.

 

[The Server has Crashed Cause There were too many Items On The Ground.]

Ok So. I was messing around with my buds and a friend asked me "Can i get some signs" and then he said "Please dont give me 1 million". And the joker i am i put in the max ammount of signs i could. And then the server broke, and now we cant join. Please help.