Fatal Error

Hello,

We got fatal-errors-2024-06-13:

2024-06-13T01:31:04+00:00 Critical Uncaught TypeError: json_decode(): Argument #1 ($json) must be of type string, array given in /var/www/mysite.com/htdocs/wp-content/plugins/woocommerce-alidropship/admin/api.php:288  
Additional context
{
    "error": {
        "type": 1,
        "file": "\/var\/www\/mysite.com\/htdocs\/wp-content\/plugins\/woocommerce-alidropship\/admin\/api.php",
        "line": 288
    },
    "backtrace": [
        "",
        "#0 \/var\/www\/mysite.com\/htdocs\/wp-content\/plugins\/woocommerce-alidropship\/admin\/api.php(288): json_decode()",
        "#1 \/var\/www\/mysite.com\/htdocs\/wp-content\/plugins\/woocommerce-alidropship\/admin\/api.php(273): VI_WOOCOMMERCE_ALIDROPSHIP_Admin_API->update_product()",
        "#2 \/var\/www\/mysite.com\/htdocs\/wp-includes\/rest-api\/class-wp-rest-server.php(1230): VI_WOOCOMMERCE_ALIDROPSHIP_Admin_API->update_product_auth()",
        "#3 \/var\/www\/mysite.com\/htdocs\/wp-includes\/rest-api\/class-wp-rest-server.php(1063): WP_REST_Server->respond_to_request()",
        "#4 \/var\/www\/mysite.com\/htdocs\/wp-includes\/rest-api\/class-wp-rest-server.php(439): WP_REST_Server->dispatch()",
        "#5 \/var\/www\/mysite.com\/htdocs\/wp-includes\/rest-api.php(428): WP_REST_Server->serve_request()",
        "#6 \/var\/www\/mysite.com\/htdocs\/wp-includes\/class-wp-hook.php(324): rest_api_loaded()",
        "#7 \/var\/www\/mysite.com\/htdocs\/wp-includes\/class-wp-hook.php(348): WP_Hook->apply_filters()",
        "#8 \/var\/www\/mysite.com\/htdocs\/wp-includes\/plugin.php(565): WP_Hook->do_action()",
        "#9 \/var\/www\/mysite.com\/htdocs\/wp-includes\/class-wp.php(418): do_action_ref_array()",
        "#10 \/var\/www\/mysite.com\/htdocs\/wp-includes\/class-wp.php(813): WP->parse_request()",
        "#11 \/var\/www\/mysite.com\/htdocs\/wp-includes\/functions.php(1336): WP->main()",
        "#12 \/var\/www\/mysite.com\/htdocs\/wp-blog-header.php(16): wp()",
        "#13 \/var\/www\/mysite.com\/htdocs\/index.php(17): require('...')",
        "#14 {main}",
        "thrown"
    ]
}

What does the error mean please?