Welcome back to the community. And congratulations on fatherhood. 
I rather recently played some of the games you mentioned and can also confirm that WeMod works with them.
I agree with what Chris said. It’s possible your version of the software is too outdated. Please uninstall WeMod using Windows’ built-in “Add and remove programs tool” in the control panel.
Then navigate to these places and make sure the folders are deleted. If not, manually delete them:
C:\Users\Your_Name\AppData\Local\WeModC:\Users\Your_Name\AppData\Roaming\WeMod
And then re-install WeMod. If the installation fails, that indicates your antivirus was interfering with it. In that case, there are a couple of additional steps here: I can’t Install WeMod / "There was a error installing the application" - #2 by Ravenfyre
Once reinstalled, you will need to log back into your account by clicking the down arrow in the top right then selecting “switch user”.
Keep us updated.