It's a problem with a different NW.js file on your system.
There is a from thread about it here: https://forums.rpgmakerweb.com/index.php?threads/mv-profile-error-occurred-durin...
"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."