Even if you could find the 2014 software, you would not be able to get updates for it, so it would not function correctly. If you need to prepare a 2014 return for your state, you could try getting the forms from the state and preparing the return by hand. Make sure you have a copy of your federal return for 2014 in front of you--you will need information from the federal return.
https://www.ftb.ca.gov/help/index.html?WT.mc_id=akContact
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