Hi Bill...I looked at the following links:
1)
[SOLVED] parts_decode_ext error Errors in admin mail report
I have all three of those packages installed.
2)
Fork error
This thread seems unresolved
I think this line "amavis[5814]: (05814-20) (!)Requesting process rundown, task exceeded allowed time" is where amavis actually died.
So far, after the restart it seems to be running fine.