nano musicais.antonin.psc.br.conf
<VirtualHost *:443>
    ServerAdmin heinz@opatriota.org
    ServerName musicais.antonini.psc.br
    DocumentRoot /var/www/html/musicais/
    SSLEngine on
    SSLCertificateFile	/etc/apache2/ssl/apache.crt
    SSLCertificateKeyFile /etc/apache2/ssl/apache.key
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

a2ensite musicais.antonin.psc.br.conf
systemctl reload apache2
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wget https://br.wordpress.org/latest-pt_BR.zip

mv wp-config.php wp-config.php1

rm -rf *.php *.txt wp-includes/ *.html wp-admin/

cd wordpress/

rm -rf wp-content

mv * ../

cd ../

mv wp-config.php1 wp-config.php

chmod 777 -R *
---------------------------------------------------
Execute na pasta raíz do seu wordpress os comandos (pode selecionar as 3 linhas, colar e dar ENTER):

sudo chown www-data:www-data -R *
sudo find . -type d -exec chmod 755 {} \;
sudo find . -type f -exec chmod 644 {} \;