Login via ipad and iphone

This is not an issue caused by the plugin –?you’re trying to view a locally installed site from your remote mobile devices.

… when [I] access the site via ipad or iphone, nothing works or shows up.

You will need to set up an install of WordPress that can be accessed either through the internet or through your network to view it from your mobile devices.

Checkout these instructions, but I can’t confirm this works:
https://www.designshifts.com/view-local-wordpress-website-on-your-iphone-or-ipad-with-mamp/

Good luck!