[cxcevallos]

I could finish the installation with de option existing database. I ignored the errors, and I created the tables and data manually with these sentences.

mysql -u root -p pandora < /var/www/html/pandora_console/pandoradb.sql
mysql -u root -p pandora < /var/www/html/pandora_console/pandoradb_data.sql

After that you have to rename install.php manually.

Finally, you can access to the site http://ipaddress/pandora_console

In my case, I had problems with the connection to the database because the  php-mysql client doesn't support the new hash autentication method of mysql 8.

It was solved updating the pandora user

ALTER USER [email protected] IDENTIFIED WITH mysql_native_password BY 'myPassword';