Error while executing a Stored Procedure in PG

Greetings, 

    On Postgres 13, I'm encountering an error message when calling a Stored procedure.

The procedure call is:

 call edb.edbspz54_update_role_rqst_stus 
( 768::INT                  -- I_APLCTN_USER_ACNT_ID
, 129::INT                  -- I_ROLE_RQST_ID
, 'A'::CHAR(1)              -- I_APRVD_REJECTED_IND
, 'U'::CHAR(1)              -- I_APRVR_TYPE
, ' ''6111'''::VARCHAR(200) -- I_APRVD_APLCTN_ROLE_LIST
, NULL::VARCHAR(200)        -- I_RJCTN_JSTFCN_TXT
);

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The error I'm facing is the below:

procedure parameter "io_error_message" is an output parameter but corresponding argument is not writ

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Can someone kindly help figure out the fix for it?

Attaching the SP code.

Thank you!EDBSPZ54.sql