Hello,
I have recently integrated PayPal IPN to my website for faster purchases and been testing my script using sandbox, just 2 days ago i completed all the tests n stuff (everything works pretty good on sandbox account) and wanted to try going live (basically changed link from "https://www.sandbox.paypal.com/cgi-bin/webscr" to "https://www.paypal.com/cgi-bin/webscr") however when i launch the page it goes on process page and then on some /validatecaptcha page and shows this at the end "Si è verificato un errore di sistema. Riprova più tardi." which basically means "A system error occurred, please try again later.".
I am truly clueless about what's wrong as i have error logs etc.
Yes IPN is enabled on my account.
Yes my account is merchant account.
Yes return notification url is https.
