Hostname is empty. Invalid Hostname
ISPConfig 3.1b1 pulled from Git on 2016/04/28.
Fresh install of ISPConfig. When I click on System > Server Config > (hostname), and then try to click on any tab (Mail, Web, DNS, etc), I receive the error "Hostname is empty. Invalid Hostname." See attached screenshot.
If I enter in a different hostname into the "Hostname" space, it doesn't save, and I continue to get the error.
php -v
PHP 7.0.5 (cli) (built: Mar 31 2016 16:44:26) ( NTS ) Copyright (c) 1997-2016 The PHP Group Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend Technologies
mysql --version
mysql Ver 14.14 Distrib 5.6.29-76.2, for Linux (x86_64) using 6.0
cat /etc/redhat-release
CentOS release 6.7 (Final)
uname -a
Linux server1.domain.tld 2.6.32-573.22.1.el6.x86_64 #1 (closed) SMP Wed Mar 23 03:35:39 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux