Icy Version 1.9.8.0
Java(TM) SE Runtime Environment 1.8.0_171-b11 (64 bit)
Running on Windows 7 6.1 (amd64)
Max java memory : 16.4 GB

Plugin File extension 0.0.1.0

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java.lang.NullPointerException
at plugins.fab.fileextension.FileExtension.run(FileExtension.java:39)
at plugins.adufour.blocks.lang.BlockDescriptor.run(BlockDescriptor.java:541)
at plugins.adufour.blocks.lang.WorkFlow.run(WorkFlow.java:837)
at plugins.adufour.blocks.lang.BlockDescriptor.run(BlockDescriptor.java:541)
at java.lang.Thread.run(Unknown Source)