Critical error cause by flexible shipping plugin

Hi there,

After updating all plugins and WordPress version, I am getting a critical error on my site caused by flexible shipping. Please see error log below:

Warning: include(/usr/www/users/mannaeexpe/wp-content/plugins/flexible-shipping/vendor/composer/../../vendor_prefixed/wpdesk/wp-wpdesk-tracker/src/data_provider/class-wpdesk-tracker-data-provider-identification.php): failed to open stream: No such file or directory in /usr/www/users/mannaeexpe/wp-content/plugins/custom-php-settings/vendor/composer/ClassLoader.php on line 444 Warning: include(): Failed opening '/usr/www/users/mannaeexpe/wp-content/plugins/flexible-shipping/vendor/composer/../../vendor_prefixed/wpdesk/wp-wpdesk-tracker/src/data_provider/class-wpdesk-tracker-data-provider-identification.php' for inclusion (include_path='.:/usr/share/php') in /usr/www/users/mannaeexpe/wp-content/plugins/custom-php-settings/vendor/composer/ClassLoader.php on line 444 
Fatal error: Uncaught Error: Class 'FSVendor\WPDesk_Tracker_Data_Provider_Identification' not found in /usr/www/users/mannaeexpe/wp-content/plugins/flexible-shipping/vendor_prefixed/wpdesk/wp-wpdesk-tracker/src/class-wpdesk-tracker-factory-prefixed.php:38 Stack trace: #0 /usr/www/users/mannaeexpe/wp-content/plugins/flexible-shipping/vendor_prefixed/wpdesk/wp-wpdesk-tracker/src/class-wpdesk-tracker-factory-prefixed.php(70): FSVendor\WPDesk_Tracker_Factory_Prefixed->build_tracker('flexible-shippi...') #1 /usr/www/users/mannaeexpe/wp-content/plugins/flexible-shipping/vendor_prefixed/wpdesk/wp-plugin-flow/src/Initialization/TrackerInstanceAsFilterTrait.php(57): FSVendor\WPDesk_Tracker_Factory_Prefixed->create_tracker('flexible-shippi...') #2 /usr/www/users/mannaeexpe/wp-includes/class-wp-hook.php(287): FSVendor\WPDesk\Plugin\Flow\Initialization\Simple\SimpleFreeStrategy->FSVendor\WPDesk\Plugin\Flow\Initialization\Simple\{closure}(NULL) #3 /usr/www/users/mannaeexpe/wp-includes/plugin.php(206): WP_Hook->apply_filters(NULL, Arra in /usr/www/users/mannaeexpe/wp-content/plugins/flexible-shipping/vendor_prefixed/wpdesk/wp-wpdesk-tracker/src/class-wpdesk-tracker-factory-prefixed.php on line 38

What can I do to fix this? I am unable to use the plugin at all without the site going down. Any help would be appreciated, thank you!