I was wondering if someone could take a look at this for me.

• The goal

My company has a ton of client folders on google drive that are full of content (files and folders). I'm trying to take all of the existing content, and move it into a newly created folder within each client folder named "old client work".

• The issue

When I run the code, there's an issue with moving folders. Creating the "old client work" folder works fine, as does moving existing files into it. But the code runs into an error when trying to move folders.

• The code

Here is the code I have:

function createOldClientWorkFolder() {
    var clientContentFolder = DriveApp.getFolderById("IDhere");
    var clientFolders = clientContentFolder.getFolders();
    while(clientFolders.hasNext()) {
        var client = clientFolders.next();
        var oldWorkFolder = client.createFolder('Old Client Work');
        var clientContentFiles = client.getFiles();
        var clientContentFolders = client.getFolders();
        while (clientContentFiles.hasNext()) {
              var fileToMove = clientContentFiles.next();
              fileToMove.moveTo(oldWorkFolder)
        }

        while (clientContentFolders.hasNext()) {
              var folderToMove = clientContentFolders.next();
              folderToMove.moveTo(oldWorkFolder)
        }


    }

}

Any help would be appreciated!