Are you getting "Unable to generate new address" error on checkout or "error on Test Setup" on your E-Commerce store? Depending on the error that is showing, you may need to take one of the following actions:
1.Error: "API Key is incorrect": Make sure you have setup your API key correctly and that this field is not empty. Your APIKey is available on the Merchants Page.
2. Error: "Please add a new store on blockonomics website" : Blockonomics needs you to have a store with valid destination wallet xpub. You can visit Merchants - BTC to for BTC payments and Merchants - BCH for BCH payments. To see how to get xpub of your wallet, you can consult this video
3. Error: "Your merchant account is disabled due to low balance": You can re-enable the account by sending Bitcoin (BTC) to the deposit address on the Payment Fee Page.
4. Error: "Unable to locate/execute <your site> testsetup.php. Check your WHMCS System URL ": Your WHMCS system URL path/domain is wrong, for example instead of using http://hostbilling.com/whmcs , you have specified http://hostbilling.com . Thus Blockonomics is unable to locate the files