Visitor Tracking Can not be enabled due to existing field error

Visitor Tracking Can not be enabled due to existing field error

I enabled Zoho CRM integration in SalesIQ which created a bunch of fields in Leads and Contacts.
Now, when I try to enable Visitor tracking in CRM, I get the following error and then lists all the fields that exist.
" The following field(s) listed below already exists."
The fields in question can not be deleted so I don't know how to resolve the issue.

Please help!