WP Detecting Fatal Errors

Hi,

Since upgrading to the latest version of Dokan, my client has been receiving the following emails from WordPress (that mostly seem to stem from the Dokan plugin).

I’ve removed the site directory for security reasons, but it should give you an idea about the error messages we’re currently recieving.

Error Details
=============
An error of type E_ERROR was caused in line 2248 of the file /home/[removed]/public_html/wp-content/plugins/dokan-lite/includes/functions.php. Error message: Uncaught Error: Call to a member function get_id() on bool in /home/[removed]/public_html/wp-content/plugins/dokan-lite/includes/functions.php:2248
Stack trace:
#0 /home/[removed]/public_html/wp-content/plugins/dokan-lite/includes/Emails/VendorCompletedOrder.php(105): dokan_get_vendor_order_details(3426, 2)
#1 /home/[removed]/public_html/wp-includes/class-wp-hook.php(292): WeDevs\Dokan\Emails\VendorCompletedOrder->trigger(3426, Object(Automattic\WooCommerce\Admin\Overrides\Order))
#2 /home/[removed]/public_html/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters(NULL, Array)
#3 /home/[removed]/public_html/wp-includes/plugin.php(551): WP_Hook->do_action(Array)
#4 /home/[removed]/public_html/wp-content/plugins/woocommerce/includes/class-wc-emails.php(170): do_action_ref_array('woocommerce_ord...', Array)
#5 /home/[removed]/public_html/wp-includes/class-wp-hook.php(292): WC_Emails::send_transactional_email(Array, Object(Automattic\WooCommerce\Admin\Override

Is this a known issue?