WordPress caught an error with one of your plugins, Transdirect Shipping

After installing the plugin, I can not create or edit the products section in woo-commerce It is giving an error. Also I got mail with below error.

Error Details
=============
An error of type E_ERROR was caused in line 104 of the file /home/ag4oz5mqnn1q/public_html/wp-content/plugins/transdirect-shipping/includes/product_sync.php. Error message: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /home/ag4oz5mqnn1q/public_html/wp-content/plugins/transdirect-shipping/includes/product_sync.php:104
Stack trace:
#0 /home/ag4oz5mqnn1q/public_html/wp-content/plugins/transdirect-shipping/includes/product_sync.php(56): product_sync->get_product_data()
#1 /home/ag4oz5mqnn1q/public_html/wp-content/plugins/transdirect-shipping/transdirect_shipping.php(992): product_sync->sync_updated_product()
#2 /home/ag4oz5mqnn1q/public_html/wp-includes/class-wp-hook.php(309): action_woocommerce_update_product()
#3 /home/ag4oz5mqnn1q/public_html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters()
#4 /home/ag4oz5mqnn1q/public_html/wp-includes/plugin.php(474): WP_Hook->do_action()
#5 /home/ag4oz5mqnn1q/public_html/wp-content/plugins/woocommerce/includes/data-stores/class-wc-product-data-store-cpt.php(275): do_action()
#6 /home/ag4oz5mqnn1q/public_html/wp-content/plugins/woocommerce/includes/class-wc-data-store.php(179): WC_Product_Data_Store_CPT->update()
#7 /home/ag4oz5mqnn1q/public_html/wp-content/plugins/woocommerce/includes/abstracts/abstract-wc-product.php(1383): WC_Data_Store->update()
#8 /home/ag4oz5mqnn1q/public_html/wp-content/plugins/woocommerce-custom-thank-you-pages/includes/admin/product-functions.php(163): WC_Product->save()
#9 /home/ag4oz5mqnn1q/public_html/wp-includes/class-wp-hook.php(309): WooCommerce_Custom_Thank_You_Pages\Admin\save_custom_thank_you_page()
#10 /home/ag4oz5mqnn1q/public_html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters()
#11 /home/ag4oz5mqnn1q/public_html/wp-includes/plugin.php(474): WP_Hook->do_action()
#12 /home/ag4oz5mqnn1q/public_html/wp-content/plugins/woocommerce/includes/admin/class-wc-admin-meta-boxes.php(224): do_action()
#13 /home/ag4oz5mqnn1q/public_html/wp-includes/class-wp-hook.php(309): WC_Admin_Meta_Boxes->save_meta_boxes()
#14 /home/ag4oz5mqnn1q/public_html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters()
#15 /home/ag4oz5mqnn1q/public_html/wp-includes/plugin.php(474): WP_Hook->do_action()
#16 /home/ag4oz5mqnn1q/public_html/wp-includes/post.php(4686): do_action()
#17 /home/ag4oz5mqnn1q/public_html/wp-includes/post.php(4788): wp_insert_post()
#18 /home/ag4oz5mqnn1q/public_html/wp-admin/includes/post.php(426): wp_update_post()
#19 /home/ag4oz5mqnn1q/public_html/wp-admin/post.php(227): edit_post()
#20 {main}
thrown

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