I can't understand why I get this annoying error message when I test out the paypal button in sandbox test site.
Error Detected
PayPal cannot process this transaction because of a problem with the seller's website. Please contact the seller directly to resolve this problem.
I've tried using different test accounts and I get the same thing.
Here are the codes for the paypal button:
echo 'form action="https://www.sandbox..../cgi-bin/webscr" method="post" target="_top">
<input type="hidden" name="cmd" value="_s-xclick">
<input type="hidden" name="hosted_button_id" value="FDN9DZRLVBQRL">
<input type="image" src="https://www.sandbox....scribeCC_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
<img alt="" border="0" src="https://www.sandbox....i/scr/pixel.gif" width="1" height="1">
</form>';