Conflict with Amazon & Ebay Integration plugin

While trying to access the settings page for the WooCommerce Amazon and eBay Integration plugin I get this:

Fatal error: Uncaught Error: Class ‘WCPBC_Admin_Pro’ not found in /home/irenew90/public_html/wp-content/plugins/woocommerce-price-based-country-pro-addon/includes/class-wc-product-price-based-country-pro.php:233 Stack trace: #0 /home/irenew90/public_html/wp-includes/class-wp-hook.php(288): WC_Product_Price_Based_Country_Pro::init_plugin(”) #1 /home/irenew90/public_html/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(NULL, Array) #2 /home/irenew90/public_html/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #3 /home/irenew90/public_html/wp-settings.php(392): do_action(‘plugins_loaded’) #4 /home/irenew90/public_html/wp-config.php(63): require_once(‘/home/irenew90/…’) #5 /home/irenew90/public_html/wp-load.php(37): require_once(‘/home/irenew90/…’) #6 /home/irenew90/public_html/wp-blog-header.php(13): require_once(‘/home/irenew90/…’) #7 /home/irenew90/public_html/index.php(17): require(‘/home/irenew90/…’) #8 {main} thrown in /home/irenew90/public_html/wp-content/plugins/woocommerce-price-based-country-pro-addon/includes/class-wc-product-price-based-country-pro.php on line 233

All plugins are up to date. Could you please suggest any solution?