warning fills up logs: "WC_Template_Loader::unsupported_theme_title_filter()"

We’re experiencing some issues with our hoster who is complaining about error logs filling up with the following message:
“PHP message: PHP Warning: Missing argument 2 for WC_Template_Loader::unsupported_theme_title_filter() in [redacted]/wp-content/plugins/woocommerce/includes/class-wc-template-loader.php on line 399\nPHP message: PHP Warning: Missing argument 2 for WC_Template_Loader::unsupported_theme_title_filter() in [redacted]/wp-content/plugins/woocommerce/includes/class-wc-template-loader.php on line 399”

From what we can tell, this warning is generated somehow by Newspaper X. It seems to occur on every page request, so we’d like to get rid of it if we can. Any thoughts on how to fix this are most welcome. Our system runs on PHP 5.6. Thank you!

Hi There,

Thanks for reaching out to us.

Is it possible that the issue is being caused by the WooCommerce plugin on your site or another plugin?

Kindly try deactivating all the other plugins to see if the issue persists.

Hope to hear from you soon.