> Whats the maximum visitors you can have on a site using your plugin and wordpress
There is no easy answer for this. WordPress runs well on a variety of small to extremely large sites. Scalability comes down to the exact code being run on the site, the amount of traffic and user interaction, and the infrastructure supporting the site.
Using a metric such as “number of visitors” isn’t particularly useful when it comes to community or e-commerce sites, because those require lots of user interaction, and that impacts performance differently to “read-only” sites. By that, I mean like newspapers, where visitors just read articles.
Hmm. Those are notices (from Visual Composer, and a buddypress.php file in your theme, and from the WP_Widget_Moon_Phases widget), not fatal errors, so unlikely to be breaking the site, and unfortunately shed no light on what might be happening. Not sure.
On your multisite – is BuddyPress network activated?
p.s. even if this was working, all the existing BP configuration settings would live on Site ID 1. I think the BuddyPress content will come across, but you’d have to check/re-set any BuddyPress options.
If you get a white screen, that means a fatal PHP error. Can you set the define back, visit the site (to trigger the error), and then look in your PHP error log? Let us know what it says.
recipient.username will probably? only work if the recipient has a user account on the website. They most likely won’t when the email’s sent, which is one reason why it might not work.
I’ll test this myself after work, and if so, try to think up a solution.
You COULD unhook this function from the filter (see: lines 16-25, same file) but I would not recommend it, because other people will use this to inject malicious markup. Instead, consider using the bp_activity_filter_kses filter and whitelist a few extra HTML funtions that you need (i.e. just the paragraph tag).
