After assembling the EYU9WRAM program, you continued to receive program checks (ABENDS0C1 ABEND0C1) in EYU9WRAM. The problem occurs on a BALR instruction trying to get to the entry point of EYU9WAPI.
The JCL used to assemble EYU9WRAM was missing an include for EYU9WAPI.
In this case, the R15 used on the BALR from R14 was zeros. This is what caused the ABENDS0C1 which eventually resulted in the ABENDACRF.
Include EYU9WAPI in the JCL used to assemble EYU9WRAM. See Sample user-replacement modules for an example of EYUEITAL:
//APPLPROG EXEC EYUEITAL,
// OUTC=*,
// CPSMHLQ='CPSM230',
// CICSHLQ='CICS630',
// LMODDSN='user.load.library',
// TRNPARM=('NOPROLOG,NOEPILOG'),
// LNKPARM=('RENT,REUS,AMODE=31,RMODE=ANY,XREF,MAP,LIST')
//TRN.SYSIN DD DISP=SHR,DSN=user.source.library(EYU9WRAM)
//LKED.SYSIN DD *
INCLUDE SYSLIB(EYU9WAPI)
NAME EYU9WRAM(R)
/*
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CICSPlex SM CICSPlexSM CPSM CP/SM