Exit Code:190

Can anyone help me? I'm lost and I Can't find anything in any forum anywhere... I get this when I try to install PS CS6 on my MacBook. when I press install it reaches 6% and tells me the following error. I don't know what to do or where to look, help! (it's a MacBook air it's running OS X 10.9.5)

Exit Code: 190

-------------------------------------- Summary --------------------------------------

- 2 fatal error(s), 0 error(s), 0 warnings(s)

FATAL: Sanity check for installation failed. Current OS version 10.9.5 doesn't satisfy OS requirements.

FATAL: Error occurred in install product workflow with error code 190 error message

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