IMac is trying to connect to a server that no longer exist on my network.

Question

iMac is trying to connect to a server that no longer exist on my network - I am looking for a solution to stop the error messages showing up. For instance, I have a contact in the address book that I need to change his picture and when I try to do that, for some reason, the server where the pics were stored appears as unavailble. The error message is not going away until the aplication is being closed.
Appreciate any feedbacks.
Thanks.

Answer 1

Back up all data.
1. If you use iCloud, uncheck the box marked Contacts in the iCloud preference pane. Press return to confirm, or click Keep on Mac in the dialog that opens.
2. From the list of groups on the left side of the Contacts window, select All On My Mac. If that group doesn't exist or is empty, skip this step. Otherwise, from the menu bar, select
File ▹ Export ▹ Export vCard
Save the exported contacts to the Desktop.
3. Quit Contacts. Triple-click the text on the line below to select it, then copy it to the Clipboard (command-C):
~/Library/Application Support/AddressBook
In the Finder, select
Go ▹ Go to Folder
from the menu bar, paste into the box that opens (command-V), and press return.
A Finder window will open with a folder selected. Move the selected folder to the Desktop, leaving the window open for now.
4. Launch Contacts. Your contacts will be gone. If you took Step 2, then from the menu bar, select
File ▹ Import
and import from the file you exported. Your contacts will reappear.
5. Re-enable Contacts in the iCloud preference pane, if you disabled it. Test. If the issue is resolved, delete the AddressBook folder and the vCard file on the Desktop and close the open folder window.
Otherwise, quit Contacts again and put the AddressBook folder back where it was, overwriting the newer one that will have been created in its place. Post your results.