PayPal.me not accepted here

I want to upload some resources, but the racedepartment upload page won't accept my paypal.me link. I have tried many different formats for the link; https://paypal.me/..., https://www.paypal.com/paypalme/..., www.paypal.com/paypalme/..., paypal.me/..., In short, I've tried every conceivable option and nothing is accepted. The race department upload page just says: "Please Enter the Expected Format..." or whatever. Please help, very frustrating.