[!damo!spiderman]

Actually.. I will explain exactly what happens and how to make a fix for your server because that script won't work for everyone

There are reserved names on windows which can't be used as filenames. When the sa-mp server tries writing a file with one of these words as the filename it freezes the server.
This can be fixed by either not using name based filenaming system. Or by kicking the player from the server and making sure you don't write the file.

I'm not posting these names here directly atm but I will ask Sneaky to release the source code