https://one-dollar-hosting.com/2016/01/our-client-area-has-just-updated-its-whmcs-to-version-6-2-1-please-tell-us-if-you-get-any-error-during-purchase-or-login-to-client-area/
Our client area has just updated its WHMCS to version 6.2.1 - please tell us if you get any error during purchase or login to client area