LOGGER is normally used to log all the MML commands on the active PGW in the /opt/CIscoMGC/var/log/mml.log file
First I would check this directory to make sure it is not full.
Next I would run the following at the unix prompt:
df -k
Make sure you are not above 80%
Finally, have a look at your XECfgParm.dat file
Again at the unix propmt:
1. cd /opt/CIscoMGC/etc
2. ls -al
Look at the ownership and permissions of your XECfgParm.dat file. Check the date and make sure that they have not changed.
Here is an example in a newly installed PGW
pgw-2% ls -al XECfgP*
-rw-rw-r-- 1 mgcusr mgcgrp 22168 Aug 23 16:21 XECfgParm.dat
pgw-2%
Hope this helps