CASSI1434E This region cannot join PAC PAC Name because the current operating system Operating system of the current ES region does not match the PAC operating system Operating system of the PAC.

The current region operating system is different from the PAC operating system.
System Action:
Shutdown the region.
Resolution:
All regions in a PAC need to be on the same operating system.
Module:
dfhginit
Destination:
Console