Check and update the code in line 16 as there is a Exception : Argument type mismatch - Found 'COLLECTION' but Expected '[MAP]' for the zoho.crm.updateRecord.

I am trying to update a contact record in Zoho CRM from Zoho books with the below script but it gives the above error:

//This is a sample function. Uncomment to execute or make changes to this function.

invoiceID = invoice.get("invoice_id");

invoicedate = invoice.get("date").toDate();

organizationID = organization.get("organization_id");

PaidQty = invoice.get("line_items").get(0).get("quantity");

InvoiceOwner = zoho.books.getRecordsByID("contacts",organizationID,invoice.get("customer_id"),"books");

CRMContact = InvoiceOwner.get("contact").get("zcrm_contact_id");

MealCredit = zoho.crm.getRecordById("contacts",CRMContact,"crm").get("Meal_Credits");

newTotal = PaidQty + MealCredit;

info CRMContact;

info InvoiceOwner;

contactMap = map();

contactMap.put("Fax", "12121");

zoho.crm.updateRecord("contacts", CRMContact, contactMap,"crm");