Syncing CRM and Books

Syncing CRM and Books

I just moved from the free version of Books and CRM to Zoho One. Now I'm trying to set up the integration so that my contacts and accounts will sync between Books and CRM.  When I do this in Books, I get to the point where I have to pick the "Organization" to sync but there is nothing in the dropdown.  Then I get an error that says "
  • Integration is currently enabled with the 'Zoho Books' organization ''. Please disable this integration and try again.

How do I fix this? 
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