Some plugins work fine and others output no results

[Texcuda]

As stated in the title certain plugins for Volatility 2.6 are working (pslist, hivescan, connscan) and others output nothing (psscan, hivelist, connections, sockets).

I've attached screenshots showing what I'm seeing.

Particulars to my situation: I'm using Volatility 2.6 on a Kali VM that is administered through my school. The VMs do not have Internet access, thus I cannot do normal troubleshooting things like updating, etc. I also tried using some other VMs within the cyber range but they all exhibit the same behavior.

Can anyone advise why this issue might be happening and what I can do to fix it?

I appreciate any help that can be provided.