Masterminecraft99

Launcher Version: 1.0.1.3 Operating System: Mac OS X Version 10.6.8 Java Version: 32 bit Antivirus Program: Description of Problem: I went to school one day after playing minecraft for about 15 minutes, however, i did not close it, i just hid it in the dock. then, when i came back from school, my house and crafting area were completely deleted. Error Messages: Error Log: