PLEASE HELP ME

So I've tried to buy the CS:GO Full 3 monts subscription for 25EURO. But every time I press the "Order using paypal" button, I get a PayPal error right in my face.

I'm gonna post the screenshot here:

(Its in danish so here is the translation):
"Payment did not go through. If you would like your payments to work again, please check your account or contact us."

Thanks in advance
Best
krvzk