VirtualPack Error

[23:45:44] [Server thread/INFO]: VirtualPack 2.7.8 enabled
[23:45:44] [Thread-31/WARN]: java.io.EOFException: Unexpected end of ZLIB input stream
[23:45:44] [Thread-31/WARN]: 	at java.util.zip.InflaterInputStream.fill(InflaterInputStream.java:240)
[23:45:44] [Thread-31/WARN]: 	at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:158)
[23:45:44] [Thread-31/WARN]: 	at java.util.zip.GZIPInputStream.read(GZIPInputStream.java:117)
[23:45:44] [Thread-31/WARN]: 	at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
[23:45:44] [Thread-31/WARN]: 	at java.io.BufferedInputStream.read(BufferedInputStream.java:265)
[23:45:44] [Thread-31/WARN]: 	at java.io.DataInputStream.readByte(DataInputStream.java:265)
[23:45:44] [Thread-31/WARN]: 	at net.minecraft.server.v1_8_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:83)
[23:45:44] [Thread-31/WARN]: 	at net.minecraft.server.v1_8_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:57)
[23:45:44] [Thread-31/WARN]: 	at net.drgnome.virtualpack.util.Util.stringToItemStack(Util.java:356)
[23:45:44] [Thread-31/WARN]: 	at net.drgnome.virtualpack.components.VInv.<init>(VInv.java:32)
[23:45:44] [Thread-31/WARN]: 	at net.drgnome.virtualpack.VPack.init(VPack.java:134)
[23:45:44] [Thread-31/WARN]: 	at net.drgnome.virtualpack.VPack.<init>(VPack.java:80)
[23:45:44] [Thread-31/WARN]: 	at net.drgnome.virtualpack.VPlugin.load(VPlugin.java:845)
[23:45:44] [Thread-31/WARN]: 	at net.drgnome.virtualpack.VPlugin.loadMysql(VPlugin.java:761)
[23:45:44] [Thread-31/WARN]: 	at net.drgnome.virtualpack.VPlugin.loadUserData0(VPlugin.java:704)
[23:45:44] [Thread-31/WARN]: 	at net.drgnome.virtualpack.thread.VThreadInit.run(VThreadInit.java:13)