Minecraft Error

Okay, so, I always play on vanilla minecraft, Cause i dont like minecraft being modded, So, I was gonna go 1.8 to play on Hypixel, And when i tried to start my minecraft, It says this

 

Error Details: Minizip error while extracting: -116

 

and idk if thats supposed to be vanilla or whatever, But then Filename on disk pops up saying this.

 

Filename on disk: lwjgl-platform-2.9.1-natives-windows.jar

 

And i dont know what to do with this, cause i cant play minecraft right now, Please, as fast as anyone have a answer to why this is happening in minecraft Vanilla 1.8,

 

Please hurry, i wanna play as fast as possible!

 

Thanks on beforehand!