CF7 zoho sync issues

So in summary I’ve inherited this issue from another Dev (I’m not a dev FYI) The leads from Cf7 Zoho plugin are not syncing automatically into Zohos lead management platform. I sync’d up the API Console with its keys etc The CR7 Forms for Zoho has all the required information including license key which is all good from what I can tell I keep getting the following log issue a:4:{s:4:”code”;s:22:”AUTHENTICATION_FAILURE”;s:7:”details”;a:0:{}s:7:”message”;s:21:”Authentication failed”;s:6:”status”;s:5:”error”;} The zoho support desk are claiming they arent sure whats wrong with it and I’m at a loss to work out the issue The page I need help with: [ log in to see the link]