CASCF0026S config-module: Error opening region (region-name) configuration file, RC = return-code

An error occurred when opening the region configuration file ($REGIONBASE/$TXREGN/dfhtx.cfg).
Restriction: This topic applies only when the Enterprise Server feature is enabled.
System Action:
Terminate the requesting process.
Resolution:
Check the access permissions on the drive/directory/file.
Module:
config-module(dfhcpcfe)
Destination:
Standard error