403 Forbidden nginx error on Plesk CP and website down

Hi,

Plesk version 12 running on Linux

Plesk CP and website down after upgrading PHP version.

It shows 403 Forbidden nginx and cannot access Plesk panel at all.

View attachment 13980

tried these commands

#service httpd restart [FAILED]
# service httpd start [FAILED]
# plesk repair all

Usage: plesk [command]

Commands:
help - Show help and exit
version - Show product version information
db - Database related commands. Open MySQL console by default.
bin - Run the...

403 Forbidden nginx error on Plesk CP and website down