Can create a VM, or plugin

I constantly get these errors, and haven't been able to find any kind of solution, because I can find anybody having the same issue. I'm decent with tec, but know next to nothing about much of FreeNAS, and networking related things, so if your able to help, please make it so that I may be able to understand it. I really don't want to have to try re - installing the entire OS, so any help would be appreciated!