Title: when i load it up its says somting like this (below)
Version: 3.1.3
OS: windows vista
Java Version: sorry idk
Description of Problem:
when i launch to go play tekkit clasic or all the others it just says it launching and when its about to launch it says this (in error messages)
Error Messages:
legacywrapper/Launch : Unsupported major.minor version 51.0
Error Log: