Can't connect campaign to crm ...

Can't connect campaign to crm ...

Hi,

I need to connect Zoho CRM to Zoho Campaign. But I cannot sync the apps because, in Zoho Campaign, Contact, Sync, when I click on "Sync CRM", an error message pops up "Organisation déjà intégrée". But it is not as you can see on the screenshots. It makes no sense. Can you help me ? Thanks