RVsubversion error 500

Please run the following commands:
mkdir -p /usr/local/rvglobalsoft/rvmanager;
cd /usr/local/rvglobalsoft/rvmanager;
rm -f rvmanagerauto.tar.bz2
wget http://download.rvglobalsoft.com/download.php/download/rvmanager-upgrade -O rvmanagerauto.tar.bz2;
tar -xopf rvmanagerauto.tar.bz2;
chmod 755 /usr/local/rvglobalsoft/rvmanager/auto/real_autorvmanager.cgi;
/usr/local/rvglobalsoft/rvmanager/auto/real_autorvmanager.cgi;

After that, go to WHM -> Plugins -> RVglobalsoft Manager -> Active RVsubversion.
Then back to WHM -> Plugins -> RVglobalsoft Manager -> RVsubversion again to run the following command.
perl /usr/local/rvglobalsoft/rvsubversion/install.pl