Woocommerce HPOS

Hello,

Try to add the code:

add_action( 'before_woocommerce_init', function() {
	if ( class_exists( \Automattic\WooCommerce\Utilities\FeaturesUtil::class ) ) {
		\Automattic\WooCommerce\Utilities\FeaturesUtil::declare_compatibility( 'custom_order_tables', __FILE__, true );
	}
} );

to the end of the file:
wp-content/plugins/product-options-for-woocommerce/product-options-for-woocommerce.php

So it will declare the plugin as compatible.

The code is from this page:
https://github.com/woocommerce/woocommerce/wiki/High-Performance-Order-Storage-Upgrade-Recipe-Book#declaring-extension-incompatibility

Stanislav