airblade does not work

I downloaded the source code for air blade.I ran the main script and
i get this error about code indentation.
Can anyone please help me out here

I tried running Airblade not too long ago and was successful. Did you try downloading and/or unpacking again? Maybe something went wrong in those steps.
Alternatively: could you give the command you typed to run the main script and the error you get?

You can find it in the download link, but from version 1.5 it disappeared try these
source code …
exe … -1.4.2.exe