So I´ve got the same error like a few others here. I read all threads and couldn´t get it fixed. Also the answer " It is just a notification and doesn´t affect the plugin" isn´t right for my case as I can "enter" the plugin. It is like not installed.
Using Siteground, PHP 7.1, Loader is enabled and also the correct plugin version has been downloaded.
Using Siteground, PHP 7.1, Loader is enabled and also the correct plugin version has been downloaded.