Javascript crashed

My javascript crashed and now I can’t neither reinstall nor use it on cocos creator.
Is there any way fix it?
If not what are the others I can use to substitute it for windows 10?

What do you mean your javascript crashed? I don’t understand what you wrote.

A file of javascript disappeard and now it doesn’t work

This is still not enough information. I can’t help you with what has been provided.

I don’t even know what happened.
Is there any other I can use to substitute it?

You are not giving us enough information to hep with the problem.

All you have said is: “it doesn’t work anymore”

You have not provided any Cocos2d-x info, any error messages, logs, screenshots, nothing.

Yes because when ever I try to open or shut down right away or it doesn’t let me write any thing.
It doesn’t says that’s a problem it just doesn’t work.
I don’t know what is the problem ether.

But Javascript is not a program. Creator has a log too. Look in the Windows Event Viewer and also:

$ ls -al ~/.CocosCreator/logs/
total 264
drwxr-xr-x  3 dubb  staff    96B Nov 16 03:37 ./
drwxr-xr-x  8 dubb  staff   256B Dec  5 02:15 ../
-rw-r--r--@ 1 dubb  staff    72K Dec 20 02:26 native.log

Ok Thanks.