- Delete "whmcslab_seo" folder (Path: whmcs-system/modules/addons) via FTP without deactivating WHMCS Seo Module in use.
 - Upload "whmcslab_seo" folder of new version under /modules/addons/ directory.
 - Reissue your license after log in to www.whmcslab.com. Details about reissue : https://www.whmcslab.com/knowledgebase.php?action=displayarticle&id=151
 - Go to SEO MODULE page on WHMCS Admin Panel ( > Addons > WHMCSLAB SEO )
 - Input your License Key on WHMCSLAB SEO MODULE General Settings tab and click on SAVE button.
 
Example :
