Sync not working Zoho CRM plug-in with Outlook 2010

Sync not working Zoho CRM plug-in with Outlook 2010

I have Outlook 2010 64 bits, I installed succesfully the Outlook plugin, the problem is that when I add the contacts folder and I try to sync with the CRM nothing happens, and when I try to synch again Outlook asks me to choose again the folder. Maybe the problem is some pre-requisite. Thx.