I have found the problem. While we quit Chrome, Chrome helper continues to run in the background.
Go to the "Utilities" folder in your application folder. Open the "Activity Monitor.App". Alternatively in spotlight search type "activity monitor".
Open Activity Monitor and in the search box in the top right corner type Chrome.
You should see one or more iterations of Chrome Helper. Highlight each one and click the X icon in the upper left corner to quit.
Once done it should work.