Chrome SmartBear Test Extension doesn't work..

Chrome SmartBear Test Extension doesn't work.. tried different ways to extract the tcCrExtension.crx file and add it manually to the chrome extension's list but still show as grayed on top-right of the Chrome window 

P.S: followed the steps specified on https://support.smartbear.com/testcomplete/docs/app-testing/web/general/preparing-browsers/chrome-extension.html