Callback Error in "2d lua based robot simulator"(author:auralius manurung)

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Lua

Hi,
Anybody who use the "2d lua based robot simulator", it's from [auralius manurung].
Some errors happened when I run this project, details are as follows:
1.The world file can't work in Win7,( It's ok in winxp).
2.When I load lua file in Code Editor and run this project,Callback error happened, it's:
"LuaCallback->Failed to Call the class function."

Anyone know these errors?

Best Wishes!

ballwql