PHP-FPM handler failed to be configured for the domain. When pressing OK in Plesk in Domains > example.com > PHP Settings, the following error appears:
phpinimng failed: invoke-rc.d:initscript plesk-php72-fpm, action "status" failed. invoke-rc.d:initscript plesk-php72-fpm, action "status" failed.Service plesk-php72-fpm is down after attempt to start it.
The same error appears when trying to start the corresponding PHP-FPM service in Tools & Settings > Services Management
The log file
/var/log/plesk-php72-fpm/error.logcontains the following error:
NOTICE: configuration file /opt/plesk/php/7.2/etc/php-fpm.conf test is successful
ERROR: An another FPM instance seems to already listen on /var/www/vhosts/system/example.com/php-fpm.sock
ERROR: FPM initialization failed
Note: PHP version may differ from 7.2 (e.g., it can be 7.3)
Leftover Domain PHP configuration files causing a conflict with the current PHP version selected in Domains > example.com > PHP Settings
Connect to the server via SSH
Download and unpack the script to find all conflicting configuration files:
# curl -LO https://plesk.zendesk.com/hc/article_attachments/12377594509335/115002165905-find-extra-config-files.php.tar.gz
# tar xf 115002165905-find-extra-config-files.php.tar.gz
Run the script to get a list of the configuration files:
# plesk php 115002165905-find-extra-config-files.php
[CRIT] File /etc/php/7.0/fpm/pool.d/example.com.conf may cause PHP failure: domain example.com has "plesk-php72-fpm" handler specified, but this file is used to configure "fpm" handler!
[CRIT] File /etc/php/7.0/fpm/pool.d/example.org.conf may cause PHP failure: domain example.org has "plesk-php72-fpm" handler specified, but this file is used to configure "fpm" handler!
Remove all the configuration files mentioned above:
# rm /etc/php/7.0/fpm/pool.d/example.com.conf /etc/php/7.0/fpm/pool.d/example.org.conf
Restart the PHP-FPM services:
# systemctl restart plesk-php* php*
Recreate the PHP-FPM sockets and configuration files:
# plesk bin php_settings -u