Crashes in Survival!

Hey Mojang,
This is my first post in this bugtracker website...
I played on MinecraftSP version 1.4.4 and the only mod was TooManyItems..
because i found that mod useful and far more easy to install...
I created a New World survival After Creating my Shelter ,Picking up resources.. Suddenly my Minecraft just Freezes and then it Crashed!
I thought it would be just one crash but then..The Crash keeps on going..
Help me i wanna play minecraft without Crashes..

Thanks! ,Mitafuku