Plesk 12.5.30-MU23 — nginx down

When I try to start in the Plesk control panel, I get this:

Error: Unable to make action: Unable to manage service by nginxmng: ('start', 'nginx'). Error: [2016-02-22 08:58:34] ERR [util_exec] proc_close() failed ['/usr/local/psa/admin/bin/nginx_control' '--start'] with exit code [255]
Can not start proxy server:

Similar error when doing command line.

Need immediate help!

Peace,
Gene