RSS breaks my theme

Hi @marionfw,

I’ve visited the website in question, but the plugin currently seems to be disabled and there’s only a Maintenance Mode screen being displayed right now.

Therefore I haven’t been able to check the described behavior on your site yet, but once the issue is visible once more I’d be glad to have a look.

You can also reach us directly on support(at)really-simple-ssl.com, e.g., if you’re using the Pro version of the plugin on your site.

Kind regards, Jarno

Hi @marionfw,

Ah, I see. Indeed, the layout changes because your site is experiencing a “Fatal Error”. However, part of the site’s content is still being rendered; but it is being displayed inside of that “Fatal Error” screen which makes it appear like that.

To determine the cause of the issue, we’d have to know the actual error message that is being triggered.

You can see that by enabling a plugin called WP Debugging on the site, and with that plugin enabled, trigger the issue once more. This will replace the generic error message (“Er heeft zich een kritieke fout voorgedaan op deze site.”) with the actual reason why the issue occurred.

If you can share that message here, we will investigate it.

Kind regards, Jarno

Hi @marionfw,

Strangely enough there are no errors or warnings related to Really Simple Security in these debug logs. There are some ‘deprecation warnings’ and a ‘textdomain warning’ originating from Hueman Pro, but those warnings on their own should not cause a Fatal Error.

The main error of interest that I can see on the site concerns the following one:

Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "wp_print_speculation_rules" not found or invalid function name

Can’t say that I’ve seen that specific error before. It seems that something is hooking into or calling this function on your site, and triggers the error because the function doesn’t exist. The function wp_print_speculation_rules() is part of a newer version of WordPress, and as far as I know it was introduced in WordPress 6.4.

Are you possibly running an older version of WordPress which doesn’t include this function yet? First thing I’d check is whether any updates are available for WordPress itself, and perhaps the Hueman Pro theme needs an update as well?

But I have yet to find an indication in these logs that this is specifically caused by Really Simple Security on your site.

Kind regards, Jarno

Hi @marionfw,

No problem at all, and sorry to hear that didn’t quite do the trick yet.

What I would personally try, to rule out Really Simple Security as the root cause of the problem:

– check if this issue is resolved by temporarily switching a different theme (e.g., a default WordPress theme, such as one of the Twenty Twenty- themes) and re-activating Really Simple Security as well.

If the combination of using a default WordPress theme & Really Simple Security works as expected, that would lead me to suspect that the Hueman Pro theme is the most-likely source of the issue (#3 /var/www/vhosts/yourdomainhere.nl/webspace/httpdocs/yourdomainhere/wp-content/themes/hueman-pro/footer.php(158): wp_footer()).

Hope this helps!
Kind regards, Jarno

• This reply was modified 10 months, 3 weeks ago by Jarno Vos.