I'm quoting since I'm not using a PC:
This error is not related to the game actually at all, so it won't impact the game. The issue runs far deeper than this game actually.
This is due to your NW JS version having been changed at one point and then changed again after that. This is actually on your system and reinstalling/deleting the game won't fix it as the problem persists in your appdata, especially if you play multiple RPG Maker games by multiple people it may cause this if people play around with NW JS files
To solve:
1 Go to your app data folder in Windows (C:\Users\[Your Username]\AppData\Local). If you can't find it, make sure you can see hidden folders.
2 Delete the folder "nwjs".
3 Go inside the folder 'User Data". Then go inside the folder "Default". Look for the files "Web Data" and "Web Data-journal". Delete these two files.
4 Launch MV and play test.
Hope it will help.