For activating auto-updates you need purchase code for register your website. After getting your purchase code to add it from UI. When we will publish the new version, you will notify through email then you will able to update in the WordPress plugins page
Warning: Invalid argument supplied for foreach() in H:\root\home\askerov-001\www\emailcustomizer.com-bad-2022-3-29\wp-includes\class-wp-list-util.php on line 165
