Hi JeanneBrunelle,
Thank you for participating in the Microsoft Community. My name is Sid, a Microsoft user like you and an Independent Advisor. I am sorry to know that you're no longer able to add new contacts to your contacts file. I'll be glad to help you with your concern.
Before we proceed, may I know what application are you using with your Contacts file document?
Are you trying to add contacts to a mail client or a specific application?
I hope to hear from you soon so we can proceed.
Regards,
Sid