Hello, I'm having issues checking out on my website since a few days. I got a "BAD_INPUT_ERROR" error flag in my PayPal URL but I can't figure out what is wrong with my POST request. Here is an example of my button code: <form class="js-paypal-checkout-form" method="POST" action="https://www.paypal.com/cgi-bin/webscr">
<input type="hidden" name="charset" value="utf-8">
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="upload" value="1">
<input type="hidden" name="business" value="********@*****.com">
<input type="hidden" name="currency_code" value="USD">
<input type="hidden" name="notify_url" value="************">
<input type="hidden" name="bn" value="DragAndDropBuil_SP_EC">
<input type="hidden" name="return" value="*******">
<input type="hidden" name="address_override" value="1">
<div class="js-order-item-list">
<div>
<div>
<input type="hidden" name="item_name_1" value="Jason (New with defects)">
<input type="hidden" name="amount_1" value="1.00">
<input type="hidden" name="quantity_1" value="1">
</div>
</div>
</div>
<div class="js-shipping-address">
<div>
<input type="hidden" name="first_name" value="John">
<input type="hidden" name="last_name" value="Smith">
<input type="hidden" name="email" value="*********">
<input type="hidden" name="address1" id="address1" value="460 Alamo St">
<input type="hidden" name="address2" id="address2" value="First Floor">
<input type="hidden" name="city" value="San Francisco">
<input type="hidden" name="state" value="CA">
<input type="hidden" name="country" value="US">
<input type="hidden" name="zip" value="94100">
<input type="hidden" name="night_phone_a" value="415">
<input type="hidden" name="night_phone_b" value="444">
<input type="hidden" name="night_phone_c" value="4444">
<input type="hidden" name="custom" value="415-444-4444">
</div>
</div>
<input type="hidden" name="custom" value="">
<input type="hidden" name="no_shipping" value="2">
<input type="hidden" name="item_name_2" value="Shipping">
<input type="hidden" name="amount_2" value="33">
<input type="hidden" name="quantity2" value="1">
<input type="hidden" name="item_name_3" value="Tax">
<input type="hidden" name="amount_3" value="2.9">
<input type="hidden" name="quantity3" value="1">
<input type="hidden" name="fallback_shipping_option_name_0" value="Shipping">
<input type="hidden" name="fallback_shipping_option_amount_0" value="0">
<input type="hidden" name="fallback_shipping_option_is_default_0" value="1">
<input type="hidden" name="fallback_tax_amount" value="0">
</form>
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