MV: Profile error occurred during playtest/game play - NW.js

When I go to playtest my game (ive tried several different projects, including new project to see if it did it still) when the playtest pops up it pops up with this alert message:

"Profile error occurred
Your profile can not be used because it is from a newer version of NW.js.
Some features may be unavailable. Please specify a different profile directory or use a newer version of NW.js."

I tried taking screen shot but its too small in the picture, sorry. What is NW.js file and what does it mean? I can still play the game, I just have to click OK everytime to get that window off.

Ive tried this fix https://steamcommunity.com/app/683760/discussions/1/2595630410189816847/#c2595630410191528351 and it did not work, same message.

I have also exported the game, same message when I play the exported game.

Lastly, I have uninstalled and reinstalled MV. Any more ideas?

Couple things I did recently, few hrs ago (prior to this problem) I installed VS code and git-scm. I'm not sure if those programs would have done anything?

Tech Support is for when you cannot get the engine to run.
[move]RPG Maker MV[/move]

It means that at some point you or other users of your computer have installed/downloaded and launched a higher version of NWjs than RPG maker MV uses. It's a completely irrelevant message though and nothing bad happens, since for important settings there is a package.json file inside the folder.
I see this message all the time ever since I downloaded NWjs v.0.30, but no actual errors occur.

So there is no way to remove this? Im glad its not an actual issue but I would rather a clean looking startup of a game.. can I just delete the nwjs folder Ive found in localapps and it will stop? I uninstalled VS code and gitscm since this post to try and revert back to way it was but no luck

You can try, it shouldn't hurt. But I have never really tried to get rid of the popup, so I don't know if it actually gets rid of the popups.

FIXED: for anyone else needing this:

-i went to %LOCALAPPDATA%/
-i deleted nwjs folder
-i went into User Data/Default folders
-deleted Web Data and Web Data-journal files
-play tested MV game with no pop up message!

after i play tested i went back to localappdata and saw a new NWJS folder appeared as well as a new Web Data/Web Data-journal

thanks Poryg for help

To clarify Bazrat's steps (thanks for figuring this out, but your steps weren't super clear) for Windows 10 users (Highly suggest shutting RPG MV off before doing this stuff and back up projects, etc.):

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.

Thanks your so much JohnOminae and bazrat it works