I ran the repair but got the following error after clicking finish:
Java Virtual Machine Launcher
Error: Unable to access jarfile C:\Program Files (x86)\Symantec\Symantec Endpoint Protection Manager\bin\inst.jar
I then ran luall.exe again but got the same errors as before.
UPDATE: I fixed the Java error by running Setup.exe as admin rather than using the msi. The repair and reconfiguration ran through successfully, however LiveUpdate still reports the same errors as before :(