Reply To: Webinterface shows empty page

You didn’t post quite enough detail to give a definite answer, but I’ll offer some suggestions:

1. You didn’t mentioned which option you chose for installing the web interface, so I’ll assume option 1 (create a directory alias). Check the file /etc/httpd/conf.d/secast.conf and ensure the directory matches where you have installed SecAst web files.
2. You didn’t post any log files, but since you are running Elastix which is based on CentOS, your Apache error log file is most likely located in /var/log/httpd/error_log. Check the log file for errors (or post the relevant section so we can offer some suggestions).