In Handicap System, activate the Options Menu by placing your pointer inside the area marked below in orange
Click on "Profile & Settings" link on Options Menu (pictured above at top)
Click on the link (circled below) to set up a free PayPal Business Account. The link will take you to PayPal.
At PayPal find the page where you can create a free Business Account (circled below in Paypal's current web page).
After you set up your free Business Account, enter the email (that you used to set up your Business Account at PayPal) into the box marked "PayPal Email Address" on the "Profile & Settings" window (image below).