Fatal Error when updating stock level

Hi,

first of all, your Plugin is a huge help for us, thank you for developing it!

Unfortunately, i can’t update the stock level in woocommerce anymore – I get this:

Fatal error: Uncaught Error: Call to a member function get_manage_stock() on string in /mnt/web408/a3/94/57375094/htdocs/shop-2018/wp-content/plugins/woo-izettle-integration/includes/izettle-integration-purchase-handler.php:253 Stack trace: #0 /mnt/web408/a3/94/57375094/htdocs/shop-2018/wp-includes/class-wp-hook.php(286): WC_iZettle_Integration_Purchase_Handler->process_purchase_wc_stockchange(20621) #1 /mnt/web408/a3/94/57375094/htdocs/shop-2018/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(”, Array) #2 /mnt/web408/a3/94/57375094/htdocs/shop-2018/wp-includes/plugin.php(465): WP_Hook->do_action(Array) #3 /mnt/web408/a3/94/57375094/htdocs/shop-2018/wp-content/plugins/woo-izettle-integration/includes/izettle-purchase-transaction-post.php(182): do_action(‘izettle_process…’, 20621) #4 /mnt/web408/a3/94/57375094/htdocs/shop-2018/wp-includes/class-wp-hook.php(286): IZ_Purchase_Transaction->handle_bulk_actions(‘/wp-admin/edit….’, ‘wc_stockchange’, Array) #5 /mnt/web408/a3/94/57375094/htdocs/shop-2018/wp-include in /mnt/web408/a3/94/57375094/htdocs/shop-2018/wp-content/plugins/woo-izettle-integration/includes/izettle-integration-purchase-handler.php on line 253

Until the last order one hour earlier, everything was updated correctly.
I updated the plugin to see if it helps with the error, but sadly it hasn’t worked either.

Can you help me with it? Is this plugin-related?

Thank you in advance

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