Problem with WooCommerce

Hi, in our web http://www.clickdisplays.com we have a serious problem. Suddendly, the Woocommerce product page stops working when Woocommerce 3.0 updates. To Check it all, first we gone back to a previous backup, then we updated your theme to 4.07 version, and then starts to update all the plugins except Woocommerce related ones. All fine up to this point, but when we update the Woocommerce to 3.0, the same error appears again.

This is the error message:

Fatal error: Uncaught exception ‘Exception’ with message ‘Producto no válido.’ in /home/clickdis/public_html/wp-content/plugins/woocommerce/includes/data-stores/class-wc-product-data-store-cpt.php:133 Stack trace: #0 /home/clickdis/public_html/wp-content/plugins/woocommerce/includes/class-wc-data-store.php(143): WC_Product_Data_Store_CPT->read(Object(WC_Product_Variable)) #1 /home/clickdis/public_html/wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-product.php(126): WC_Data_Store->read(Object(WC_Product_Variable)) #2 /home/clickdis/public_html/wp-content/plugins/wc-dynamic-pricing-and-discounts/wc-dynamic-pricing-and-discounts.php(689): WC_Product->__construct(88) #3 [internal function]: RP_WCDPD->product_page_pricing_table(”) #4 /home/clickdis/public_html/wp-includes/class-wp-hook.php(298): call_user_func_array(Array, Array) #5 /home/clickdis/public_html/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(”, Array) #6 /home/clickdis/public_html/wp-includes/plugin.php(453): WP_Hook->do_action(Array in /home/clickdis/public_html/wp-content/plugins/woocommerce/includes/data-stores/class-wc-product-data-store-cpt.php on line 133

We are in a hurry because we cannot sell anything right now. How can we solve this problem?

Thanks for your fast response

Regads,

Sergio