If we pull the updateid "2cefe0ef-f4e1-4c3d-97f9-10a608c46c52" you can hunt for the specific update. In this case you need to open your Content Location folder and search your Microsoft Updates for the folder..
Here we can see this is from the Q2 updates for the 2013 patches from the year of 2013.
From here there are several things you can do:
1. remove the update frrom the DP and then repush
2. Refresh the package on the DP.
3. Delete the update and redownload (Provision) it from Microsoft and repush.
The end result should be the same. Hopefully you can back track the bad update and fix it.
Note: This assume you have already determined there are problems with the source and not the machine. This can be determined by uninstalling the update from a machine and attempting to reinstall it or seeing all machines pulling from the given DP with errors.