The screenshot of the contents of the Cheats Mod folder was enough to tell me that: You've installed it wrong.
View attachment 3642254
The only ways anyone is supposed to download the mod is either:
LMake will eventually be able to install the mod as well. For now though it is just meant to be used to download and zip updates before they get released. On my end I just use it to make the release zips (significantly faster than my previous release workflow)
Also, you should be using a newer game version. Without the compat edits the minimum required game version is 0.8.7.4 (I may add a compat module at some point to remove the need to do any editing, but it is a
very low priority for the foreseeable future)
P.S: The Source links on the Releases should also be ignored as they are essentially the same as the Code button, but for that specific tag.