Hello!
What happens is that each one must download their own depending on the version of the system you are using and the project you are creating.
Assuming you are using Windows (x64) I can give you a copy from my folder of the "nw" compatible and "updated" version (49.2)
Keep in mind the "nwjs-win" folder you must replace its contents with the ones you have where you have rpg maker mz installed. Usually it is usually:
C:\Program Files\Steam\SteamLibrary\common\Rpg Maker MZ\
(But it can change if you have Steam installed elsewhere)
Download
https://drive.google.com/file/d/11bHiBBJxPyyvWOXXB2oQJ8sTliWNoQC5/view?usp=shari...