Error when trying out example custom stories in game Amnesia

Hi Gurus,
I was playing Amnesia, and I was trying out example custom stories when I got this error message. I haven’t done any scripting yet or have done any changes so I wondered why this error happened. Any knowledge on this type of problems? Hope you can help me because I want to learn how to make these custom stories. Thanks in advance.

FATAL ERROR
FATAL ERROR: Could not load script file
‘custom_storeis/ExampleStory/maps0_example.hps’!
Main (22,25): ERR : Expected identifier
