root@francitest:~# systemctl status php7.0-fpm.service
● php7.0-fpm.service - The PHP 7.0 FastCGI Process Manager
Loaded: loaded (/lib/systemd/system/php7.0-fpm.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Sun 2019-02-10 14:00:14 UTC; 22min ago
Docs: man:php-fpm7.0(8)
Main PID: 1070 (code=exited, status=78)
Feb 10 14:00:12 francitest.netlib.re systemd[1]: Starting The PHP 7.0 FastCGI Process Manager...
Feb 10 14:00:14 francitest.netlib.re php-fpm7.0[1070]: [10-Feb-2019 14:00:14] ERROR: [pool wifiadmin] cannot get uid for user 'admin'
Feb 10 14:00:14 francitest.netlib.re php-fpm7.0[1070]: [10-Feb-2019 14:00:14] ERROR: FPM initialization failed
Feb 10 14:00:14 francitest.netlib.re systemd[1]: php7.0-fpm.service: Main process exited, code=exited, status=78/n/a
Feb 10 14:00:14 francitest.netlib.re systemd[1]: Failed to start The PHP 7.0 FastCGI Process Manager.
Feb 10 14:00:14 francitest.netlib.re systemd[1]: php7.0-fpm.service: Unit entered failed state.
Feb 10 14:00:14 francitest.netlib.re systemd[1]: php7.0-fpm.service: Failed with result 'exit-code'.