Checked on the WCC machine under $CSAM_SOCKADAPTER/cfg directory and there is no file called "APPF-GLOBAL-9000".
Executed following commands to see what settings are specified for the portrange.
./csamconfigedit portrange=49152-50176 display
Noticed following 2 settings
Execute following command:
./csamconfigedit port=9000 EnableSSL=False EnablePmux=True
File "APPF-GLOBAL-9000" has been created in $CSAM_SOCKADAPTER/cfg directory
Error message is no longer produced when validating Autosys server now