Its hard to say. can be few different issues:
-try using winrar to unpack game archieve (dont open .exe with 7zip, just unpack main package with some different tool and try running exe)
-check out if you actually have LewdMaze.jar inside game folder, if no - its packing tool error.
-make sure you have latest Java64 installed
Best if you can contact me on discord and send me screenshot for your game folder and how you run it etc. assc0bar#8880