I updated ATUM this morning and it broke the shop on my site. Here is the error:
Fatal error: Uncaught Error: Access to undeclared static property: AtumLevels\Levels\Products\AtumProductProductPartVariation::$atum_data in /home/customer/www/gotreads.com/public_html/wp-content/plugins/atum-product-levels/classes/Levels/Products/BOMProductTrait.php:39 Stack trace: #0 /home/customer/www/gotreads.com/public_html/wp-content/plugins/woocommerce/includes/class-wc-product-factory.php(46): AtumLevels\Levels\Products\AtumProductProductPartVariation->__construct('35339', Array) #1 /home/customer/www/gotreads.com/public_html/wp-content/plugins/woocommerce/includes/wc-product-functions.php(72): WC_Product_Factory->get_product('35339', Array) #2 /home/customer/www/gotreads.com/public_html/wp-content/plugins/atum-stock-manager-for-woocommerce/classes/Inc/Helpers.php(2052): wc_get_product('35339') #3 /home/customer/www/gotreads.com/public_html/wp-content/plugins/atum-product-levels/classes/Inc/Hooks.php(1162): Atum\Inc\Helpers::get_atum_product('35339') #4 /home/customer/www/gotreads.com/public_html/wp-includes/class in /home/customer/www/gotreads.com/public_html/wp-content/plugins/atum-product-levels/classes/Levels/Products/BOMProductTrait.php on line 39
I used the plugin WP Rollback to rollback to the previous version.