Error message on iphone Chrome browser

Hello,

Please see the screenshot of the error message that I receive when I try to view my site on an iPhone 6 using Chrome as my browser.

I installed membership pro through the admin dashboard and saw the error message. I also tried deleting the plugin through ftp and then uploading the plugin from the wpmu site https://premium.wpmudev.org/project/membership/. The error message still shows. How do I fix?