java.lang.IllegalArgumentException: Invalid UUID string: jadedcat
at java.util.UUID.fromString(Unknown Source)
at carpentersblocks.tileentity.TEBase.getOwner(TEBase.java:202)
at carpentersblocks.util.protection.PlayerPermissions.canPlayerEdit(PlayerPermissions.java:30)
at carpentersblocks.block.BlockCoverable.func_149727_a(BlockCoverable.java:299)
at net.minecraft.server.management.ItemInWorldManager.func_73078_a(ItemInWorldManager.java:376)
at net.minecraft.network.NetHandlerPlayServer.func_147346_a(NetHandlerPlayServer.java:554)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:60)
at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:9)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

Occurs when I click a log on a carpenter's block.

Should have converted the owner on world load. I'm looking into it.