Minor Error Rectification in Woocommerce Paypal Pro

IN PROGRESS
Bids
4
Avg Bid (USD)
$24
Project Budget (USD)
$10 - $15

Project Description:
I have this site and i have install Woocommerce Paypal Pro Module but when i make an order and Checkout.. it show error...

YOU DONT HAVE ANY PERMISSION TO MAKE THIS API CALL....
SOMETHING IS WRONG

I have already entered:

API Username
API Password
Signature

Can anyone fix this issue as soon as possible.

Thanks

Skills required:
Paypal API, PHP, Shopping Carts, Wordpress
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