CASRS2104E ITR type error for Resource name: ITR not sent to Region name and host because it has not pinged the PAC SOR for Duration since last ping from region seconds.

ITR record for resource Resource name not created in PSOR for region Region name and host because it has not pinged PSOR for more than Duration since last ping from region seconds.
System Action:
The referenced region will be ignored and hence will not process the request for the resource.
Resolution:
See PAC documentation.
Module:
casstore
Destination:
Console