Natural start up errors

Where do you find Natural start up errors? I looked and searched
Open System
Natural 8.4.1
. correct buffer pool
. security nucleus
. .INI .CFG set up
. New sagenv.curr
. natenv set
. Natparm works fine
Natural Startup Error: 28
??? security

thanks

http://techcommunity.softwareag.com/ecosystem/documentation/natural/nat841win/ops/ops-exitcodes.htm#ops-exitcodes

http://techcommunity.softwareag.com/ecosystem/documentation/natural/nat841unx/ops/ops-exitcodes.htm#ops-exitcodes

Yup. 28 is a security error.