Hello @gbolahanpost,
Good day! Thanks for trying out Super PWA plugin.
I just checked your website and seen that some files on your website are not loading as secured (ie; not https://). Even though SSL certificate is installed, the page doesn’t show a green padlock on browser, because not all links in the source are https. Please see this screenshot: https://ibb.co/eZodDS
As for progressive web apps, the website should be served fully via https://
You can either use a plugin like Better Search Replace: https://www.ads-software.com/plugins/better-search-replace/ to replace all https:// links with https:// (be careful and take a db backup before you do) or a plugin like this https://www.ads-software.com/plugins/really-simple-ssl/ to force SSL. Otherwise you can search the https:// links by checking the source code.
That should do it I think. If not, please let me know.
Thanks,
SuperPWA