[Plugin: Pinterest "Pin It" Button] Just installed the plugin, pin button for posts and pa

now the button “appears” but the icon is broken, and the pop-up won’t stop loading over and over

I don’t see that behavior but you can try the troubleshooting steps here:

https://pinterestplugin.com/pin-it-button-lite-faq

might be cause I forgot about this topic after 5 days, and managed to fix it alone. Sorry for not checking resolved before.