Where is the Zoho CRM Quickbooks Connector?

Where is the Zoho CRM Quickbooks Connector?

I can't find it in the Marketplace. I was using the Quickbooks Connector for several months and then it recently stopped working. I followed a support suggestion here in the forum to remove and reinstall the Connector, so I removed it and now I can't find it in the marketplace to reinstall. Where is it?