I can’t use the plugin “Fatal Error”

Hello, When I am trying to use the plugin, I get the below error:

Notice: Undefined property: stdClass::$publish in /home/shopi3per/domains/shopipersia.com/public_html/wp-content/plugins/woo-product-feed-pro/pages/admin/woosea-manage-feed.php on line 6

Notice: Undefined property: stdClass::$publish in /home/shopi3per/domains/shopipersia.com/public_html/wp-content/plugins/woo-product-feed-pro/pages/admin/woosea-manage-feed.php on line 7

Fatal error: Uncaught Error: Call to undefined function WC() in /home/shopi3per/domains/shopipersia.com/public_html/wp-content/plugins/woo-product-feed-pro/pages/admin/woosea-manage-feed.php:23 Stack trace: #0 /home/shopi3per/domains/shopipersia.com/public_html/wp-content/plugins/woo-product-feed-pro/classes/class-admin-pages-template.php(18): require() #1 /home/shopi3per/domains/shopipersia.com/public_html/wp-content/plugins/woo-product-feed-pro/woocommerce-sea.php(4916): Construct_Admin_Pages->set_page() #2 /home/shopi3per/domains/shopipersia.com/public_html/wp-includes/class-wp-hook.php(310): woosea_manage_feed() #3 /home/shopi3per/domains/shopipersia.com/public_html/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters() #4 /home/shopi3per/domains/shopipersia.com/public_html/wp-includes/plugin.php(517): WP_Hook->do_action() #5 /home/shopi3per/domains/shopipersia.com/public_html/wp-admin/admin.php(259): do_action() #6 {main} thrown in /home/shopi3per/domains/shopipersia.com/public_html/wp-content/plugins/woo-product-feed-pro/pages/admin/woosea-manage-feed.php on line 23
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