I had a world.
I moved the world from an user to another user.
Then i wanted to play the world, but minecraft crashed, when i tried to play the world.
I can still play the world on my first account without crashing.
I hope anybody can help me.
here is the crash report
(Sorry for my bad english 🙂 )
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Dupe of MC-10167
On a side note, your Java is outdated:
Java Version: 1.7.0_51, Oracle Corporation
Please update to 1.8.0_31: http://www.oracle.com/technetwork/java/javase/downloads/index.html