Hi I'm trying to setup up PayPal Checkout + Paypal Standard for my t-shirt store viz. teezines.co
I get the error in the heading in the backend; I have both options enabled right now so I request you go to my store and try any of the two Paypal payment options to see the technical error for yourself.
Error: The API credentials you provided are not valid. Please double-check that you entered them correctly and try again.
Please help me fix this asap and minimize any further loss due to missed business.