Problem with gui

Hi,I'm new on this forum, than you should forgive my errors

My problem is that: When I open custom gui, I have crash and cast exception, but i don't know where.

This is log:
http://pastebin.com/CnNmjFj8

GuiHandler code:
http://pastebin.com/B4DLbx0k

TileEntityGenerator code:
http://pastebin.com/XneBdLry

BlockGenerator code:
http://pastebin.com/WYh2DyGS

ContainerGenerator code:
http://pastebin.com/fSdVj5Hv

GuiGenerator code:
http://pastebin.com/vMEYJ9nF

Thank you for all help!
P.S. Sorry for my bad English