Host is offline

Hello,

I have been using this cluster installed on windows for a while, but when I started was already installed and I’m learning how it works. Currently, notice it been slow and sometime fail to perform things it used to. Surprisingly, I saw my jobs running but not on the host. Trying to investigate, i used the pbsnodes -a command and realize that the host is offline. One other thing I have done was to use pbsnodes -c command. Unfortunately, it now seems not even to accept other commands. My questions are how do I undo the pbsnodes -c command and how do I put the host online?

Thank you