[NEED HELP] Sound not precached

Hello, I work on a my first map and it is almost done. I have an error message when playing it an it say "sv_soundtrack (map/.../sound.waw"):not precached (fix your code), precaching anyway.
I opened the .map file and I searched in the code about the sound and I compared with another sound code I have in the file but I have not seen nothing wrong.
I do not know what to do!

Can you upload your map? Ideally, the compiled bsp too.

Can you upload your map? Ideally, the compiled bsp too.

Here we are:
The file:
http://www.freedrive.com/file/1469927,x-...eta_07.pk3
The folder contening the file if the link up here does not works:
http://www.freedrive.com/folder/305297

The event happen when we shoot the triger up over the towers or the laser barre in the cage.

(I did not know we can attach a file here, just see that[attachment=431])

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Sorry, I should have just post the .map and the .bsp files !

It happens on the default maps too for me...
Might be server lag.