Installing Sysadmin on CentOS 7

When attempting to install the SYSADMIN Module on CentOS 7 I get the following:

[[email protected] yum.repos.d]# sudo -u asterisk /var/lib/asterisk/bin/module_admin reload
Successfully reloaded
[[email protected] yum.repos.d]# sudo -u asterisk /var/lib/asterisk/bin/module_admin download sysadmin

Untaring…Done
Module sysadmin successfully downloaded
[[email protected] yum.repos.d]# sudo -u asterisk /var/lib/asterisk/bin/module_admin install sysadmin
WARNING!! Sysadmin RPM needs to be updated! Run ‘yum update sysadmin’ as root to continue
Whoops\Exception\ErrorException: chmod(): Operation not permitted in file /var/www/html/admin/modules/sysadmin/install.php on line 24
Stack trace:

  1. Whoops\Exception\ErrorException->() /var/www/html/admin/modules/sysadmin/install.php:24
  2. Whoops\Run->handleError() :0
  3. chmod() /var/www/html/admin/modules/sysadmin/install.php:24
  4. include_once() /var/www/html/admin/libraries/modulefunctions.class.php:2454
  5. module_functions->_doinclude() /var/www/html/admin/libraries/modulefunctions.class.php:2406
  6. module_functions->_runscripts() /var/www/html/admin/libraries/modulefunctions.class.php:1956
  7. module_functions->install() /var/lib/asterisk/bin/module_admin:68
  8. doInstall() /var/lib/asterisk/bin/module_admin:847
    [[email protected] yum.repos.d]#