IPSec Services: IPSec Services failed to get the complete list of network interfaces on the machine. This can be a potential security hazard to the machine since some of the network interfaces may not get the protection as desired by the applied IPSec filters. Please run IPSec monitor snap-in to further diagnose the problem.
Do you actually use the IPSec service? If not, set the Service to manual, and the error messages will disappear.
If you really want to keep IPSec running, it's likely that your logs are too large, or are full. Using Event Viewer, set your logs to 32MB or smaller each, and clear them all. Set your overwrite policy to "overwrite as needed". You should start logging events again.