As a part of the 5.6.11.X upgrade, the foglight.sar file must be replaced
How can the correct version of the file be confirmed?
Using a zip utility, navigate to:
$FGLHOME /server/default/deploy/foglight.sar/META-INF/ and open MANIFEST.MF
The "Specification-Version" property in that file should reflect the version of this particular foglight.sar