Crash Report || Server 1.7.9

I went on Minecraft 1.7.9 version and went on a server. Then there was Crash. Was there Crash Report. When I went 6x still trying but it was always the same! When I rest arte my PC and it's still Crash why I'm sending this Report.

What was actually happening is simply that I joinde server and could play without Crash Report or any other such thing.

Steps are above ^^

Link:
http://gyazo.com/51919b788ce2da210dd8930256ca57cb
http://gyazo.com/a9483d472cba7b2a22c794ebf318b23b