[Help]Domjudge on CentOS

Dear admin,

I am a student at University of Information Technology, I'm going to use Domjudge to organize our contest (ACM), I followed your Admin Manual Installation Guide, but I always get error when install Domjudge:

-- Before, I get error about jsoncpp-devel. Then, I add --disable-submitclient in configure line. This was not happened. -- After, when I run make, I get error about symbol in /usr/lib/libm.so. File in wrong format. -- Then, I followed Install again, I check url /share/domjudge/www/jury => it a white page.

I think I have some mistake when install, but I sure that I followed all of you tutorial. So, can you help me to install this? I'm using CentOS 6.7 with Kloxo installed.

Best regard,

Vu Linh