Hello i use opencart v2.3.0.2 but i have this error : <form action="https://www.paypal.com/cgi-bin/webscr" method="post"> <input type="hidden" name="cmd" value="_cart"> <input type="hidden" name="upload" value="1"> <input type="hidden" name="business" value="my paypal email"> <input type="hidden" name="item_name_1" value="Pcard | 0606-Friendship"> <input type="hidden" name="item_number_1" value="Pcard | 0606-Friendship"> <input type="hidden" name="amount_1" value="3.5"> <input type="hidden" name="quantity_1" value="5"> <input type="hidden" name="weight_1" value="0"> <input type="hidden" name="on0_1" value="Upload your high quality favorite photo to print a postcard"> <input type="hidden" name="os0_1" value="cpanel.png"> <input type="hidden" name="on1_1" value="Enter the English or Persian text you want to print on the postcard"> <input type="hidden" name="os1_1" value="test"> <input type="hidden" name="on2_1" value="Enter the English or Persian text you want to print behind the postcard"> <input type="hidden" name="os2_1" value="test"> <input type="hidden" name="on3_1" value="Enter your greetings or message for printing inside the postcard"> <input type="hidden" name="os3_1" value="test"> <input type="hidden" name="item_name_2" value="Shipping, Handling, Discounts & Taxes"> <input type="hidden" name="item_number_2" value=""> <input type="hidden" name="amount_2" value="10"> <input type="hidden" name="quantity_2" value="1"> <input type="hidden" name="weight_2" value="0"> <input type="hidden" name="currency_code" value="USD"> <input type="hidden" name="first_name" value="demo"> <input type="hidden" name="last_name" value="demo"> <input type="hidden" name="address1" value="my address"> <input type="hidden" name="address2" value=""> <input type="hidden" name="city" value="demo city"> <input type="hidden" name="zip" value=""> <input type="hidden" name="country" value="IR"> <input type="hidden" name="address_override" value="0"> <input type="hidden" name="email" value="my customer email"> <input type="hidden" name="invoice" value="40 - demo demo"> <input type="hidden" name="lc" value="en-gb"> <input type="hidden" name="rm" value="2"> <input type="hidden" name="no_note" value="1"> <input type="hidden" name="no_shipping" value="1"> <input type="hidden" name="charset" value="utf-8"> <input type="hidden" name="return" value="http://giftbaran.com/en-gb/checkout/success"> <input type="hidden" name="notify_url" value="http://giftbaran.com/en-gb/extension/payment/pp_standard/callback"> <input type="hidden" name="cancel_return" value="http://giftbaran.com/en-gb/checkout/checkout"> <input type="hidden" name="paymentaction" value="authorization"> <input type="hidden" name="custom" value="40"> <input type="hidden" name="bn" value="OpenCart_2.0_WPS"> <div class="buttons"> <div class="pull-right"> <input type="submit" value="Confirm Order" class="btn btn-primary"> </div> </div> </form> please help me to solve this problem. thanks
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