You are trying to run the CAUNZIP utility on z/OS, and it's getting a RC=12 with the following message:
CAUNZIP ZIPPATH(/usr/ftp/CAESD/) ZIPFILE(scart0.zip)
CAUNZIP r14.0 (05/03/13)
FILE SYSUT3 NOT ALLOCATED, TOO MANY DATA SETS+
MAXIMUM NUMBER OF DATA SET ALLOCATIONS ALLOWED BY YOUR SESSION HAS BEEN
REACHED, YOU SHOULD FREE UNUSED DATA SETS
Modify your JCL to include an additional parameter, DYNAMNBR=nn, as shown here.
//CAUNZIP EXEC PGM=IKJEFT01,REGION=0M,DYNAMBR=50
This parameter is delivered with the CAUNZIP example JCL delievered with current releases of CA Common Services.