PayPal credit declined

Description

I have a credit line of $600 with PayPal credit with an available credit of $360.00. I have had the line of credit for almost a year now, but I wasn’t able to use it up until today. I bought a Walmart gift card for $100 and a Best Buy gift card for $150. I have tried to use my PayPal credit to checkout on several different sites, including the PayPal digital gift site again, but I am unable to use it again now. It keeps saying “Unable to process payment, Return to merchant and select a different payment option” or something of that nature every time. What is the deal?!!