Crashing with no crash report?

[YepNepDep]

Hi. Recently, Tekkit Classic has been crashing with only an error report from the JRE. This started happening around half an hour after i started playing on this mod pack, but now it crashes only a minute after i start the world. No crash screen, no crash report in the %APPDATA%\.technic, nothing. Only hs_error_pid3812.txt The only hint from the file is this;

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)

j org.lwjgl.openal.AL10.alSourcei(III)V+0

j paulscode.sound.libraries.ChannelLWJGLOpenAL.attachBuffer(Ljava/nio/IntBuffer;)Z+39

j paulscode.sound.libraries.SourceLWJGLOpenAL.play(Lpaulscode/sound/Channel;)V+362

j paulscode.sound.Library.play(Lpaulscode/sound/Source;)V+72

j paulscode.sound.Library.play(Ljava/lang/String;)V+89

j paulscode.sound.SoundSystem.CommandPlay(Ljava/lang/String;)V+12

J paulscode.sound.SoundSystem.CommandQueue(Lpaulscode/sound/CommandObject;)Z

J paulscode.sound.CommandThread.run()V

v ~StubRoutines::call_stub

But I expect that that doesn't help at all. So, first, What's causing this, and second, how do I fix this? My system specs are Win7 64 bit, 2 Core processors, and 4gb RAM, and I'm using JRE7. Thanks in advance.