Hello.
Apologies as I am not a power user. Just a small business owner using Fusion to run Windows to do accounting on QuickBooksPro 2015.

I had been using an 2011 iMac for this task but recently upgraded the machine to a Late 2015 21.5 inch iMac with 2.8GHz processor, 8GB memory and Intel Iris Pro Graphics 6200 1536MB card - all running on MacOS Monterey 12.6.7

After getting the 2015 machine, I used a Time Machine backup from an external drive to import the files into the new computer.  The version of Fusion I have installed is 8.5.10 that's running Windows 10 x64.

My issue is that when I start up Fusion on the 2015 iMac, I get a pop up alert that says: "Could not open /dev/vmon: No such file or directory. Please make sure that the kernel module "vmmon" is loaded" and gives an Ok button. 

When I press the Ok button, another popup appears: "Failed to initialize monitor device."

My presumption is that something with the transfer of files has caused this but I don't know enough about system files to really understand the issue and rectify the issue. 

Any insight or solution is greatly appreciated. Thank you!