child process exited with exit code 1

I am running a code for loading datasets into tables with psql, and the make the following steps

DROP DATABASE IF EXISTS mimic;
CREATE DATABASE mimic OWNER postgres;

set search_path to mimiciii;

\c mimic;

\i C:/Tools/mimic-code-master/buildmimic/postgres/postgres_create_tables.sql

\set ON_ERROR_STOP 1

\set mimic_data_dir 'C:/mimic-iii-clinical-database-1.4'

when i run this command

\i C:/Tools/mimic-code-master/buildmimic/postgres/postgres_load_data_7zip.sql

error shows: so ADMISSIONS.csv.gz: child process exited with exit code 1

What should I do to get rid of this problem?