undeclared static property class-wt-orderimpexpcsv-basic-exporter.php

[30-Mar-2023 13:14:17 UTC] PHP Fatal error: Uncaught Error: Access to undeclared static property Wt_Import_Export_For_Woo_Basic_Order_Bulk_Export::$is_wc_paypal_active in /home/xxxxxxxxx/public/wp-content/plugins/order-import-export-for-woocommerce/admin/modules/order/export/class-wt-orderimpexpcsv-basic-exporter.php:494

Stack trace:

#0 /home/xxxxxxxxxx/public/wp-content/plugins/order-import-export-for-woocommerce/admin/modules/order/export/class-wt-orderimpexpcsv-basic-exporter.php(153): Wt_Import_Export_For_Woo_Basic_Order_Bulk_Export::get_orders_csv_row()

#1 /home/xxxxxxx/public/wp-content/plugins/order-import-export-for-woocommerce/admin/modules/order/order.php(127): Wt_Import_Export_For_Woo_Basic_Order_Bulk_Export::do_export()

#2 /home/xxxxxxxx/public/wp-includes/class-wp-hook.php(308): Wt_Import_Export_For_Woo_Basic_Order->wt_process_order_bulk_actions()

#3 /home/xxxxxxxx/public/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()

#4 /home/storm/sites/nutravet-co-uk/public/wp-includes/plugin.php(517): WP_Hook->do_action()

#5 /home/xxxxxxxx/public/wp-admin/admin.php(385): do_action()

#6 /home/xxxxxxxxx/public/wp-admin/edit.php(10): require_once('...')

#7 {main}

thrown in /home/xxxxxxxx/public/wp-content/plugins/order-import-export-for-woocommerce/admin/modules/order/export/class-wt-orderimpexpcsv-basic-exporter.php on line 494

I’ve fixed in this our version of your plugin by replacing the
line 39 to: self::$is_wc_paypal_active = true;
line 494 to: if (isset(self::$is_wc_paypal_active)):

This is because $this-> isn’t available to the static method as they are callable without the object. but this can be targets with self::

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