ORA-12560: Tns Protocol Adapter Error + ORA-01034: ORACLE not available - oracle

Question

I am trying to run a bat script which should perform the automatic deployment of a database, along with other structures, but I have several problems when I run the file.
I have installed Oracle 19, set my ORACLE_HOME to the folder path and also ORACLE_SID is set to "orcl". I have also started the OracleServiceORCL from services and when I run my bat script, I get more errors:
>>> STEP 0 => Running prerequisites with dba role user <<<
_____________________________________________________________
BEGIN dbms_output.put_line('Connected user is '||USER); END;
*
ERROR at line 1:
ORA-01034: ORACLE not available
Process ID: 0
Session ID: 0 Serial number: 0
The file looks like this:
SET serveroutput on
SET pagesize 5000
SET long 5000
SET pages 500
SET linesize 300
SET echo on
SET serveroutput on
WHENEVER SQLERROR EXIT
prompt ##########################################
prompt ###### Start deploying SABD project ######
prompt ##########################################
prompt
-- Setting deploy variables
define srcDB_path='C:\Users\mihaelad\WSOP\main\main\src\database'
define adminSABD='SABDADM'
define userSABD='SABDUSER'
define passAdmSABD='SABDADM'
define passUserSABD='SABDUSER'
prompt _____________________________________________________________
prompt >>> STEP 0 => Running prerequisites with dba role user <<<
prompt _____________________________________________________________
SET feedback off
EXECUTE dbms_output.put_line('Connected user is '||USER);
--SET feedback on
#runWithDba.sql
prompt
prompt
SET feedback off;
EXECUTE dbms_lock.sleep(2);
SET feedback on;
connect &&adminSABD/&&passAdmSABD
SET serveroutput on
prompt ______________________________________________
prompt >>> STEP 1 => Creating SABDADM objects <<<
prompt ______________________________________________
SET feedback off
EXECUTE dbms_output.put_line('Connected user is '||USER);
SET feedback on
#sabdadm/master.sql
connect &&userSABD/&&passUserSABD
SET serveroutput on
prompt ______________________________________________
prompt >>> STEP 2 => Creating SABDUSER objects <<<
prompt ______________________________________________
SET feedback off
EXECUTE dbms_output.put_line('Connected user is '||USER);
SET feedback on
#sabduser/master.sql
exit
and also the error regarding TNS: ORA-12560. I will also provide my listener.ora:
# This is a sample listener.ora that contains the NET8 parameters that are
# needed to connect to an HS Agent
LISTENER =
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=tcp)(HOST=0.0.0.0)(PORT=1521))
)
SID_LIST_LISTENER=
(SID_LIST=
(SID_DESC=
(SID_NAME=dg4odbc)
(ORACLE_HOME=C:\Users\mihaelad\Downloads\WINDOWS.X64_193000_db_home)
(PROGRAM=dg4odbc)
)
)
#CONNECT_TIMEOUT_LISTENER = 0
and also the tnsnames.ora:
# This is a sample tnsnames.ora that contains the NET8 parameters that are
# needed to connect to an HS Agent
dg4odbc =
(DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))
(CONNECT_DATA=(SID=dg4odbc))
(HS=OK)
)
I also tried to set ORACLE_SID with "dg4odbc", as mentioned in the tnsnames, but same errors appeared.
Does anyone know what I am doing wrong?