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Fatal Error

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The support doesn work on Saturdays and Sundays, so some Friday requests can be answered on Monday.
dan(@dan-danlim-co-nz)
1 Post
Customers
September 9, 2026, 00:42

Howdy!

WordPress has a built-in feature that detects when a plugin or theme causes a fatal error on your site, and notifies you with this automated email.

In this case, WordPress caught an error with one of your plugins, FOX - Currency Switcher Professional for WooCommerce.

FOX 1.5.3
WooCommerce HPOS enabled
WooCommerce Payments Jetpack Sync running via WP-Cron
WoocsHpos->getOrderScreenId() calls wc_get_page_screen_id()
PHP 8.5.4
WordPress 7.1

#1
Alex Dev(@alexdev)
1,235 Posts
September 9, 2026, 20:04

Hello

Thank you for the report.

Please send us the debug log. You can get it either with a plugin, for example WP Debugging together with Error Log Monitor from the WordPress repository, or manually by adding these lines to wp-config.php above the line"That's all, stop editing" and then reading wp-content/debug.log:

define( 'WP_DEBUG', true );
define( 'WP_DEBUG_LOG', true );
define( 'WP_DEBUG_DISPLAY', false );

We need to see the exact scenario in which the error occurs, with the file and the line number, because it does not reproduce on our side. We run HPOS on our development site and cannot trigger it there.

We do have a theory, and there is something you can try right away. Open the file classes/woocs_hpos.php in the plugin folder and replace the getOrderScreenId function with this version:

public function getOrderScreenId(): string {
	if (!function_exists('wc_get_container') || !class_exists('Automattic\WooCommerce\Utilities\OrderUtil') || !function_exists('wc_get_page_screen_id') || !class_exists('WC_Admin_Menus')) {
		return '';
	}
       // @phpstan-ignore-next-line
	$screen = wc_get_container()->get(HposController::class)->custom_orders_table_usage_is_enabled() ? wc_get_page_screen_id('shop-order') : 'shop_order';
	return $screen;
}

Please make a backup of the file first, and note that this is a manual edit, so it will be overwritten the next time you update the plugin. The change will be included in the next release.

After applying it, tell us whether anything changed on your side. Together with the log that will let us confirm the cause.

Best regards
Alex

#2
Alex Dev(@alexdev)
1,235 Posts
September 18, 2026, 17:18

Hello

Update is just done (v.1.5.4), and fix is there

#3