Unable to mount NFS filesystem at booting

[sivdp1]

System (CentOS 6) was running fine. When I turned system on after 4 days(running windows on same machine), in booting sequences it showed up "NFS filesystem queued to be mounted" and "mounting filesystems :" and it stuck to it. what can i do? screenshot attached

IMG_20181101_104732.jpg (139.51 KiB) Viewed 2746 times

[tunk]

Does it boot with the rescue kernel?
If so, what does /etc/fstab look like?

[Whoever]

When you get the problem fixed, don't mount NFS filesystems at boot time. Instead, use the automounter. This will allow your system to boot even if there are problems with the NFS server.