The issue is fixed with the new start command '/bin/bash -c "a2dismod mpm_event || true && a2enmod mpm_prefork && echo 'ServerName 0.0.0.0' >> /etc/apache2/apache2.conf && echo 'DirectoryIndex index.php index.html' >> /etc/apache2/apache2.conf && echo 'upload_max_filesize = 50M' >> /usr/local/etc/php/php.ini && echo 'post_max_size = 50M' >> /usr/local/etc/php/php.ini && docker-entrypoint.sh apache2-foreground"'
by Gemini.