Error: failed place order

Hello,

With the latest version 3.9.8, and we only enabled two models:

https://prnt.sc/UKujOjunPcT3

We do not allow vendor custom shipping setting.

2024/01/13 02:43:30 [error] 48671#48671: *52 FastCGI sent in stderr: "PHP message: PHP Warning:  Undefined array key "rates" in /var/www/mysite.com/htdocs/wp-content/plugins/dokan-pro/includes/Shipping/Hooks.php on line 777PHP message: PHP Warning:  foreach() argument must be of type array|object, null given in /var/www/mysite.com/htdocs/wp-content/plugins/dokan-pro/includes/Shipping/Hooks.php on line 777" while reading response header from upstream, client: 24.199.120.100, server: mysite.com, request: "GET /checkout/ HTTP/2.0", upstream: "fastcgi://unix:/var/run/php/php81-two-fpm.sock:", host: "mysite.com", referrer: "https://mysite.com/shop/jewelry/earrings/moissanite-earrings-with-925-sterling-silver/"

2024/01/13 02:44:23 [error] 48695#48695: *76 FastCGI sent in stderr: "PHP message: PHP Warning:  Undefined array key "rates" in /var/www/mysite.com/htdocs/wp-content/plugins/dokan-pro/includes/Shipping/Hooks.php on line 777PHP message: PHP Warning:  foreach() argument must be of type array|object, null given in /var/www/mysite.com/htdocs/wp-content/plugins/dokan-pro/includes/Shipping/Hooks.php on line 777" while reading upstream, client: 24.199.120.100, server: mysite.com, request: "GET /cart/ HTTP/2.0", upstream: "fastcgi://unix:/var/run/php/php81-two-fpm.sock:", host: "mysite.com", referrer: "https://mysite.com/checkout/"

2024/01/13 02:45:04 [error] 48695#48695: *88 FastCGI sent in stderr: "PHP message: PHP Warning:  Undefined array key "rates" in /var/www/mysite.com/htdocs/wp-content/plugins/dokan-pro/includes/Shipping/Hooks.php on line 777PHP message: PHP Warning:  foreach() argument must be of type array|object, null given in /var/www/mysite.com/htdocs/wp-content/plugins/dokan-pro/includes/Shipping/Hooks.php on line 777" while reading upstream, client: 24.199.120.100, server: mysite.com, request: "GET /cart/ HTTP/2.0", upstream: "fastcgi://unix:/var/run/php/php81-two-fpm.sock:", host: "mysite.com", referrer: "https://mysite.com/shop/jewelry/earrings/moissanite-earrings-with-925-sterling-silver/?attribute_pa_color=rose&attribute_pa_metal-type=925-sterling-silver"