Just uninstall / re-install with the same problem. It is difficult for me to give you remote access since we require SSH and PKI. When I save the key the Apache log shows the following:
[Mon Jan 16 17:50:14 2017] [error] [client 71.163.149.97] PHP Notice: Use of undefined constant isGet - assumed 'isGet' in /var/www/html/domains/k12ology.com/subdomains/k12ology/public_html/administrator/components/com_profiles/filemanager/controller/xhrcookie.php on line 27, referer: https://test.k12ology.com/administrator/index.php?option=com_profiles&format=raw&
[Mon Jan 16 21:21:45 2017] [error] [client 71.163.149.97] PHP Notice: Use of undefined constant AWOREWARDS_ESTOREHELPER - assumed 'AWOREWARDS_ESTOREHELPER' in /var/www/html/domains/k12ology.com/subdomains/k12ology/public_html/administrator/components/com_aworewards/models/config.php on line 161, referer: https://test.k12ology.com/administrator/index.php?option=com_aworewards&view=license
[Mon Jan 16 21:21:45 2017] [error] [client 71.163.149.97] PHP Notice: Use of undefined constant AWO_ESTORE - assumed 'AWO_ESTORE' in /var/www/html/domains/k12ology.com/subdomains/k12ology/public_html/administrator/components/com_aworewards/models/config.php on line 161, referer: https://test.k12ology.com/administrator/index.php?option=com_aworewards&view=license
[Mon Jan 16 21:21:45 2017] [error] [client 71.163.149.97] PHP Fatal error: require(): Failed opening required '/var/www/html/domains/k12ology.com/subdomains/k12ology/public_html/administrator/components/com_aworewards/helpers/estore/AWO_ESTORE/helper.php' (include_path='.:/usr/share/pear:/usr/share/php') in /var/www/html/domains/k12ology.com/subdomains/k12ology/public_html/administrator/components/com_aworewards/models/config.php on line 161, referer: https://test.k12ology.com/administrator/index.php?option=com_aworewards&view=license