[Tue Jul 03 09:13:41.730101 2018] [proxy_fcgi:error] [pid 18860] [client 127.0.0.1:56606] AH01071: Got error ‘PHP message: PHP Fatal error: Uncaught ArgumentCountError: Too few arguments to function Quick_Featured_Images_Pro_Defaults::add_featured_image(), 2 passed in /wp-includes/class-wp-hook.php on line 286 and exactly 3 expected in /wp-content/plugins/quick-featured-images-pro/admin/class-quick-featured-images-pro-defaults.php:661
#0 /wp-includes/class-wp-hook.php(286): Quick_Featured_Images_Pro_Defaults->add_featured_image(389, Object(WP_Post))
#1 /wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array)
#2 /wp-includes/plugin.php(453): WP_Hook->do_action(Array)
#3 /wp-content/plugins/oxygen/component-framework/includes/ajax.php(220): do_action(‘save_post’, 389, Objec…
‘, referer: https://oxygen.wpdemos.net/temp-page/?ct_builder=true&ct_inner=true&oxygen_iframe=true
Oxygen dev’s comment:
Based on that, it’s sort of unfair to say the plugin is not compatible with Oxygen then. It makes it sound like the issue is specifically between Oxygen and this plugin, but based on the error_log it looks like that plugin might throw an error whenever save_post is called via AJAX?
First, I shortened the paths in the error message to remove security-relevant hints from your server. Then I look into the source codes mentioned in the message. Maybe there is sort of unexpected call of the function of QFIP. I will publish a fix soon.