I am trying to test PayPal Website Payments Pro using PayPal's Sandbox environment. I see the transactions go thru on PayPal's web site, but when the browser is redirected to /index.php?main_page=checkout_process I am getting a 500 - Internal server error . I the site is hosted on GoDaddy and I have turned off CURL proxy. Has anyone encountered this problem? Please help.
Thanks!
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