How to activate license in offline?

Instructions

Press the Client Portal button.

At web-browser will be displayed page with detail of your license.

Copy your PK code from Settings window (or click Support → Report a Bug and copy it from body) and enter it into Activate field.

Click the Activate button and will begin to download your license.

You should copy the downloaded license file to %AppData%\AhauSoftware\OutlookAddin\license.lic for manual activation and after that restart Outlook.