Address Book Completely Defunct

I got a major problem with address book... The app itself doesn't do anything. There are no cards, and if I try to import, or do any other function, it just stays on the latest window. When opened, this is what terminal gives me:

/Applications/Address\ Book.app/Contents/MacOS/Address\ Book ; exit;

cmac:~ chrism$ /Applications/Address\ Book.app/Contents/MacOS/Address\ Book ; exit;

2013-04-06 10:58:11.060 Address Book[96559:5603] Error loading bundle (PHXLocalSource): Error Domain=NSCocoaErrorDomain Code=3587 UserInfo=0x1001ca350 "The bundle “LocalSourceBundle” couldn’t be loaded because it is damaged or missing necessary resources." (dlopen_preflight(/System/Library/Address Book Plug-Ins/LocalSource.sourcebundle/Contents/MacOS/LocalSource): Library not loaded: /System/Library/PrivateFrameworks/YahooSync.framework/Versions/A/YahooSync

Referenced from: /System/Library/Address Book Plug-Ins/LocalSource.sourcebundle/Contents/MacOS/LocalSource

Reason: no suitable image found. Did find:

/usr/local/lib/YahooSync: stat() failed with errno=13)

2013-04-06 10:58:11.062 Address Book[96559:5603] Could not load local source

2013-04-06 10:58:11.104 Address Book[96559:5603] Error loading bundle (PHXLocalSource): Error Domain=NSCocoaErrorDomain Code=3587 UserInfo=0x1001bd510 "The bundle “LocalSourceBundle” couldn’t be loaded because it is damaged or missing necessary resources." (dlopen_preflight(/System/Library/Address Book Plug-Ins/LocalSource.sourcebundle/Contents/MacOS/LocalSource): Library not loaded: /System/Library/PrivateFrameworks/YahooSync.framework/Versions/A/YahooSync

Referenced from: /System/Library/Address Book Plug-Ins/LocalSource.sourcebundle/Contents/MacOS/LocalSource

Reason: no suitable image found. Did find:

/usr/local/lib/YahooSync: stat() failed with errno=13)

2013-04-06 10:58:11.105 Address Book[96559:5603] Could not load local source

2013-04-06 11:00:09.821 Address Book[96559:650f] Error loading bundle (PHXLocalSource): Error Domain=NSCocoaErrorDomain Code=3587 UserInfo=0x1001b3940 "The bundle “LocalSourceBundle” couldn’t be loaded because it is damaged or missing necessary resources." (dlopen_preflight(/System/Library/Address Book Plug-Ins/LocalSource.sourcebundle/Contents/MacOS/LocalSource): Library not loaded: /System/Library/PrivateFrameworks/YahooSync.framework/Versions/A/YahooSync

Referenced from: /System/Library/Address Book Plug-Ins/LocalSource.sourcebundle/Contents/MacOS/LocalSource

Reason: no suitable image found. Did find:

/usr/local/lib/YahooSync: stat() failed with errno=13)

Then, when I try to import all my contacts from what I have from iCloud to try and fix it, it tells me there are duplicates (which there should be) and nothing happens if I click replace, or any other option. Terminal says:

2013-04-06 11:00:46.449 Address Book[96559:903] *** -[NSCFArray objectAtIndex:]: index (0) beyond bounds (0)

or

2013-04-06 11:00:56.066 Address Book[96559:903] *** -[NSCFSet addObject:]: attempt to insert nil

Thing is, the data is there: if I use the dashboard Address Book finder, I can see the names and details. But I can't use the app, or add anyone. Another thing: the plist file is not in library/preferences. It's nowhere.

I'm really not sure how to fix this problem, and any advice would be helpful.

Thanks in advance.