I have similar problem, Elementor send me the 500 error when I try to save any page using Ajax from the KiteStudio Core plugin, I try everything, disable everything and the problem is when I activate that plugin, even I get a fatal error when I try to load a revision from WordPress before the errors began, I really need help, all the site is working but I’m unable to make any change to any page, Only when I publish a new page and don’t use any Ajax plugin inside KiteStudio Core plugin.
I look for the error log and it says
[14-Aug-2020 21:14:23 UTC] post was called incorrectly. No se debería acceder a las propiedades del producto directamente. Backtrace: require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), do_action('template_redirect'), WP_Hook->do_action, WP_Hook->apply_filters, WC_AJAX::do_wc_ajax, do_action('wc_ajax_load_quick_view'), WP_Hook->do_action, WP_Hook->apply_filters, kite_load_quick_view, WC_Abstract_Legacy_Product->__get, wc_doing_it_wrong. This message was added in version 3.0.
[14-Aug-2020 21:14:23 UTC] post was called incorrectly. No se debería acceder a las propiedades del producto directamente. Backtrace: require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), do_action('template_redirect'), WP_Hook->do_action, WP_Hook->apply_filters, WC_AJAX::do_wc_ajax, do_action('wc_ajax_load_quick_view'), WP_Hook->do_action, WP_Hook->apply_filters, kite_load_quick_view, WC_Abstract_Legacy_Product->__get, wc_doing_it_wrong. This message was added in version 3.0.
[14-Aug-2020 21:14:23 UTC] id was called incorrectly. No se debería acceder a las propiedades del producto directamente. Backtrace: require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), do_action('template_redirect'), WP_Hook->do_action, WP_Hook->apply_filters, WC_AJAX::do_wc_ajax, do_action('wc_ajax_load_quick_view'), WP_Hook->do_action, WP_Hook->apply_filters, kite_load_quick_view, wc_get_template, include('/themes/pinkmart/woocommerce/quickview/quick-view-content.php'), do_action('quick_view_product_summary'), WP_Hook->do_action, WP_Hook->apply_filters, kite_title_quick_view, WC_Abstract_Legacy_Product->__get, wc_doing_it_wrong. This message was added in version 3.0.
[14-Aug-2020 21:14:23 UTC] id was called incorrectly. No se debería acceder a las propiedades del producto directamente. Backtrace: require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), do_action('template_redirect'), WP_Hook->do_action, WP_Hook->apply_filters, WC_AJAX::do_wc_ajax, do_action('wc_ajax_load_quick_view'), WP_Hook->do_action, WP_Hook->apply_filters, kite_load_quick_view, wc_get_template, include('/themes/pinkmart/woocommerce/quickview/quick-view-content.php'), do_action('quick_view_product_summary'), WP_Hook->do_action, WP_Hook->apply_filters, kite_title_quick_view, WC_Abstract_Legacy_Product->__get, wc_doing_it_wrong. This message was added in version 3.0.I don’t know if this is the error because it says nothing, but this error appears after the fatal error.
The error when I save the pages in safari and chrome is showed in the next images:
I look for any error in the data base, but it looks ok, but I really don’t know if the error is there
I really love the theme I even make a full Spanish translation, but I’m unable to make it work, Can you help me?