Error cannot buy v5 license online

HI, I WANT TO BUY SAMBA POS V5 PRO LICENSE BUT IT GIVES ME ERROR WHEN I CLICK ON PROCEED BUTTON ON PAYMENT PAGE. PLEASE HELP AS ITS GIVING ACTIVATION WARNING : BELOW IS THE ERROR

404 NOT FOUND
Error : /Modules/Buy
An error occurred while processing your request.

@Hive_Lounge I answered your e-mail. Did you received it?

@Hive_Lounge I saw you retried it and received another error. Seems like your bank cancels that transaction. Maybe you didn’t permitted international transactions. You can get better info about the reason by contacting your bank.

btw we can’t accept PayPal atm. We hope to bring it back soon.