Removing Zombie php-fpm processes from VPS server to bring back unresponsive websites

Case Scenario:

Cloudlinux is removed at kernel level and LiteSpeed server is also removed. Apache is set as default and its restarted also. Sites became live but went down after few days again.

curl -I http://127.0.0.1

uname -r

httpd -M | grep hostinglimits

cldeploy -c

apachectl fullstatus

ps -eo pid,stat,etime,cmd | grep httpd | grep -v grep

ps aux | grep -E 'php-fpm|lsphp|lsapi' | grep -v grep

systemctl stop ea-php81-php-fpm

systemctl stop ea-php82-php-fpm

systemctl stop php-fpm

pkill -9 php-fpm

ps aux | grep php-fpm | grep -v grep

systemctl start ea-php81-php-fpm

systemctl restart httpd

ps aux | grep -E 'php-fpm|lsphp|lsapi' | grep -v grep

pkill -9 -f "/usr/local/cpanel/etc/php-fpm.conf"

vi /opt/cpanel/ea-php81/root/etc/php-fpm.d/*.conf

systemctl restart ea-php81-php-fpm