Won't let me buy?

When I tried to buy a month of CSGO hacks, an error page said "We are not able to process your payment using your PayPal account at this time. Please return to the merchant's website and try using a different payment method" Is there a reason for this?

There's a problem with your paypal and it might be related to your credit card or bank account, could you tell me what have you attached to your paypal account?