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java.util.zip.ZipException: Not in GZIP format	at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:165)	at java.util.zip.GZIPInputStream.(GZIPInputStream.java:79)	at java.util.zip.GZIPInputStream.(GZIPInputStream.java:91)	at undefined.dx.a(SourceFile:24)	at undefined.azg.a(SourceFile:82)	at undefined.azg.c(SourceFile:66)	at undefined.azd.b(SourceFile:99)	at net.minecraft.server.MinecraftServer.a(SourceFile:193)	at undefined.byn.a(SourceFile:70)	at undefined.byn.j(SourceFile:130)	at net.minecraft.server.MinecraftServer.run(SourceFile:427)	at java.lang.Thread.run(Thread.java:745)