crash when opens EC books

[adamsonich]

2 or 3 time crash with same crash report

java.lang.IllegalArgumentException: bound must be positive
at java.util.Random.nextInt(Random.java:388)
at ec3.client.gui.GuiResearchBook.drawShapedOreRecipe(GuiResearchBook.java:842)
at ec3.client.gui.GuiResearchBook.drawRecipe(GuiResearchBook.java:525)
at ec3.client.gui.GuiResearchBook.drawPage_1(GuiResearchBook.java:492)
at ec3.client.gui.GuiResearchBook.drawPage(GuiResearchBook.java:346)
at ec3.client.gui.GuiResearchBook.func_73863_a(GuiResearchBook.java:176)
at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:1061)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1001)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Stacktrace:
at java.util.Random.nextInt(Random.java:388)
at ec3.client.gui.GuiResearchBook.drawShapedOreRecipe(GuiResearchBook.java:842)
at ec3.client.gui.GuiResearchBook.drawRecipe(GuiResearchBook.java:525)
at ec3.client.gui.GuiResearchBook.drawPage_1(GuiResearchBook.java:492)
at ec3.client.gui.GuiResearchBook.drawPage(GuiResearchBook.java:346)
at ec3.client.gui.GuiResearchBook.func_73863_a(GuiResearchBook.java:176)

-- Screen render details --
Details:
Screen name: ec3.client.gui.GuiResearchBook
Mouse location: Scaled: (499, 272). Absolute: (998, 473)
Screen size: Scaled: (960, 509). Absolute: (1920, 1018). Scale factor of 2