I just installed WPC Price by Quantity for WooCommerce plugin and the Product Details page breaks
Fatal error: Uncaught Error: Call to undefined method Wpcpq_Frontend::get_tiers() in ****/wp-content/themes/maximin/woocommerce/single-product/price-by-quantity.php:13 Stack trace: #0 ****/wp-includes/template.php(772): require() #1 ****/wp-content/plugins/woocommerce/includes/wc-core-functions.php(284): load_template(‘/home2/makerxp5…’, false) #2 ****/wp-content/themes/maximin/includes/merlin-ext/price-by-quantity/price-by-quantity.php(50): wc_get_template_part(‘single-product/…’) #3 ****/wp-includes/class-wp-hook.php(307): Maximin_Extension_Price_By_Quantity->display_price(”) #4 ****/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array) #5 ****/wp-includes/plugin.php(476): WP_Hook->do_action(Array) #6 ****/wp-content/themes/maximin/woocommerce/content-single-product.php(65): do_action(‘woocommerce_sin…’) #7 /home2/ in ****/wp-content/themes/maximin/woocommerce/single-product/price-by-quantity.php on line 13