Error with Currency Not Supported

Hi There

I’m getting the following error when trying to checkout:

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Payment error:
An error (10605) occurred while processing your PayPal payment. Please contact the store owner for assistance.
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When viewing the debut logs a currency not supported error is listed. ZAR South African Rand is the store currency. Is ZAR not supported?

Thanks

https://wordpress.org/plugins/woocommerce-gateway-paypal-express-checkout/