[ovirt-users] Server dont work after Host setting

Hello, i am new with ovirt and i installed ovirt engine on centos. After first login i create the host with fqdn of ovirt server but without powersavesettings. Firt i saw installing as status for host, but after a while nothing happend, I reboot the server. In engine.log i see "VMs initialization finished for Host", but i cant open the webgui. What can i do? Where can i look to find the error and what have i done wrong? Thx