Issue with plugin / Critical Error

Hi,

It seems there’s an issue with the plugin on my staging website. I’me trying to import some orders from live website to staging and keep getting this error message :

Plugin version : 3.9

Could you please help me to figure out what is wrong ?
Thanks and regards,
Julien

Une erreur de type E_ERROR a été causée dans la ligne 1108 du fichier /home/ziju5938/public_html/newfuji/wp-content/plugins/woo-advanced-shipment-tracking/includes/class-wc-advanced-shipment-tracking.php. Message d’erreur : Uncaught TypeError: Cannot access offset of type string on string in /home/ziju5938/public_html/newfuji/wp-content/plugins/woo-advanced-shipment-tracking/includes/class-wc-advanced-shipment-tracking.php:1108

Stack trace:

#0 /home/ziju5938/public_html/newfuji/wp-content/plugins/woo-advanced-shipment-tracking/includes/class-wc-advanced-shipment-tracking.php(302): WC_Advanced_Shipment_Tracking_Actions->get_formatted_tracking_item()

#1 /home/ziju5938/public_html/newfuji/wp-content/plugins/woo-advanced-shipment-tracking/includes/class-wc-advanced-shipment-tracking.php(401): WC_Advanced_Shipment_Tracking_Actions->display_html_tracking_item_for_meta_box()

#2 /home/ziju5938/public_html/newfuji/wp-admin/includes/template.php(1453): WC_Advanced_Shipment_Tracking_Actions->meta_box()

#3 /home/ziju5938/public_html/newfuji/wp-content/plugins/woocommerce/src/Internal/Admin/Orders/Edit.php(502): do_meta_boxes()

#4 /home/ziju5938/public_html/newfuji/wp-content/plugins/woocommerce/src/Internal/Admin/Orders/Edit.php(410): Automattic\WooCommerce\Internal\Admin\Orders\Edit->render_meta_boxes()

#5 /home/ziju5938/public_html/newfuji/wp-content/plugins/woocommerce/src/Internal/Admin/Orders/PageController.php(295): Automattic\WooCommerce\Internal\Admin\Orders\Edit->display()

#6 /home/ziju5938/public_html/newfuji/wp-includes/class-wp-hook.php(341): Automattic\WooCommerce\Internal\Admin\Orders\PageController->output()

#7 /home/ziju5938/public_html/newfuji/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters()

#8 /home/ziju5938/public_html/newfuji/wp-includes/plugin.php(522): WP_Hook->do_action()

#9 /home/ziju5938/public_html/newfuji/wp-admin/admin.php(264): do_action()

#10 {main}

  thrown