I am using PayPal standard payment and using following code.
<form action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="quantity_1" value="1">
<input type="hidden" name="item_name_1" value="Sasha">
<input type="hidden" name="amount_1" value="545.71">
<input type="hidden" name="business" value="<merchant-email-id>">
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="upload" value="1">
<input type="hidden" name="currency_code" value="EUR">
<input type="hidden" name="address_override" value="0">
<input type="hidden" name="custom" value="48">
<input type="hidden" name="first_name" value="test11">
<input type="hidden" name="last_name" value="test21">
<input type="hidden" name="email" value="<buyer-email-id>">
<input type="hidden" name="address" value="Santa clara">
<input type="hidden" name="city" value="Santa clara">
<input type="hidden" name="state" value="CA">
<input type="hidden" name="zip" value="95050">
<input type="hidden" name="country" value="USA">
<input type="hidden" name="phone" value="1023456789">
<input type="hidden" name="notify_url" value="<complete-url>" />
<input type="hidden" name="return" value="<complete-url>" />
<input type="hidden" name="cancel_return" value="<complete-url>" />
<input type="submit" value="Submit">
</form>
When I press submit and go to PayPal sandbox screen then it shows blank page. Is it under maintenance or there could be issue from my end. Few days earlier same above form was working but from last 3-4 days PayPal sandbox page showing blank.
I am not getting is it problem from my end or their end?