Error log of cpanel for this plugin

Line 3745: [12-Jun-2024 00:38:36 UTC] PHP Warning:  Trying to access array offset on value of type null in /home/mainproject/public_html/wp-content/plugins/products-extractor-for-woocommerce/wcpe.php on line 501

Line 3746: [12-Jun-2024 00:38:36 UTC] PHP Warning:  Trying to access array offset on value of type null in /home/mainproject/public_html/wp-content/plugins/products-extractor-for-woocommerce/wcpe.php on line 513

Thoes line would be:

501# if($response['success'] === TRUE && $response['message'] === 'the token is valid'){
513# $data['Error'] = $response['error'];

using PHP 8.1