Getting error while making payment

i have integrated stripe form with contact form 7 when i click on submit it is giving me following error :

https://www.mygaitexpert.com/




Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, Stripe\Util\CaseInsensitiveArray given in /home/f8tm4rft6tjf/public_html/wp-content/plugins/accept-stripe-payments-using-contact-form-7/inc/lib/sdk/ApiRequestor.php:402
Stack trace:

0 /home/f8tm4rft6tjf/public_html/wp-content/plugins/accept-stripe-payments-using-contact-form-7/inc/lib/sdk/ApiRequestor.php(402): array_key_exists()

1 /home/f8tm4rft6tjf/public_html/wp-content/plugins/accept-stripe-payments-using-contact-form-7/inc/lib/sdk/ApiRequestor.php(125): Stripe\ApiRequestor->_requestRaw()

2 /home/f8tm4rft6tjf/public_html/wp-content/plugins/accept-stripe-payments-using-contact-form-7/inc/lib/sdk/ApiOperations/Request.php(57): Stripe\ApiRequestor->request()

3 /home/f8tm4rft6tjf/public_html/wp-content/plugins/accept-stripe-payments-using-contact-form-7/inc/lib/sdk/ApiOperations/All.php(23): Stripe\ApiResource::_staticRequest()

4 /home/f8tm4rft6tjf/public_html/wp-content/plugins/accept-stripe-payments-using-contact-form-7/inc/lib/class.cf7sa.lib.php(200): Stripe\Customer::all()

5 /home/f8tm4rft6tjf/public_html/wp-includes/class-wp-hook.php(308): CF7SA_Lib->action__get_stripe_intent()

6 /home/f8tm4rft6tjf/public_html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()

7 /home/f8tm4rft6tjf/public_html/wp-includes/plugin.php(517): WP_Hook->do_action()

8 /home/f8tm4rft6tjf/public_html/wp-admin/admin-ajax.php(188): do_action()

9 {main}

thrown in /home/f8tm4rft6tjf/public_html/wp-content/plugins/accept-stripe-payments-using-contact-form-7/inc/lib/sdk/ApiRequestor.php on line 402

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