Hello @lanzosuarez ,
PayPal having some server issue , This might be get resolve soon.
Some says that it is because we are try in the same country. Can you check out of my shopify store and try to check that that same error occurs to you.
i have a $1 fake product added to store to check the payment.
please someone check this out for me and let me know if it works.
and if you could please send some screenshots as well.