I suspect there may be a server issue, but I've tried various things and, except for the fact that Messenger doesn't work properly, it's a great plugin.
My requests include the ability to turn off “open in a new tab” (for WordPress's own Activitypub page, SNS list page within the site, etc.), the ability to specify JavaScript for the link destination (for WordPress's SupportBoard plugin, etc.), a feature that displays when scrolling except for time, the ability to specify a subtitle in small text above or below the SNS name, and the ability to specify animation to end after a certain number of loops.
Some of these may be difficult to implement, but if they are, I would like to purchase them for the websites I create for work.

Once again, thank you for providing such an excellent plugin.