I have already installed Nagvis for Nagios in FreeBSD, but the problem is that there are some problems…
I have an screen shot about the error as a reference…
I thought that It is the best way o not see the screen shots error. Otherwise You have do power recycling. I hope that It should be not arise this error again. Good luck dude.
It is good to know that you have taken screen shot of your problem so that you can share it with other problem for easy understanding. But I can not find out any error in your screen shot. So you should check it properly.