Aqui também, mesmo erro.
[18-May-2021 09:23:55 UTC] PHP Warning: asort() expects parameter 1 to be array, null given in /home/*****/public_html/wp-content/plugins/woocommerce-mercadopago/includes/module/sdk/lib/class-mp.php on line 606
[18-May-2021 09:23:55 UTC] PHP Warning: asort() expects parameter 1 to be array, null given in /home/******/public_html/wp-content/plugins/woocommerce-mercadopago/includes/module/sdk/lib/class-mp.php on line 606
[18-May-2021 09:24:01 UTC] PHP Warning: asort() expects parameter 1 to be array, null given in /home/********/public_html/wp-content/plugins/woocommerce-mercadopago/includes/module/sdk/lib/class-mp.php on line 606