Runtime error, help please.

[Witi]

When I open the LEGO Star Wars.exe the screen turns white and this message appears:

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Nu2api Runtime Error!

File: \bgprocxbx.c
Line: 195

Description: Assert.

(Your application has generated an error message).

Retry Annul Omit
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I can't play it.
I have the Directx9.0c and I don't know what to do.