Every time I try to install I get this message.

Archive: /home/astroblack/Downloads/flstudio_9.0.3.exe
[/home/astroblack/Downloads/flstudio_9.0.3.exe]
End-of-central-directory signature not found. Either this file is not
a zipfile, or it constitutes one disk of a multi-part archive. In the
latter case the central directory and zipfile comment will be found on
the last disk(s) of this archive.
zipinfo: cannot find zipfile directory in one of /home/astroblack/Downloads/flstudio_9.0.3.exe or
/home/astroblack/Downloads/flstudio_9.0.3.exe.zip, and cannot find /home/astroblack/Downloads/flstudio_9.0.3.exe.ZIP, period.
Can someone tell me what this means, and what I should do?