openLightBox API not working

import wixWindow from 'wix-window';
let fadeOptions = {
 "duration": 2000,
 "delay": 1000
};

export function iconButton1_click(event) {
    //Add your code for this event here: 
    let notificationText = $w('#text122');
    console.info('in listener');
    console.info(wixWindow);
    wixWindow.openLightBox('Notifications', {});
 
}

I have a button called iconButton1. This listener function is attached to it. The function get called but when it reaches the line wixWindow.openLightBox(‘Notifications’, {}); then it shows this weird error.
This code is in the Site Code section.
The button is in the site header.
The lightbox name is correct. I am using the name, not the id.

Has anyone seen this error before?

You have a spelling error.
It should be .openLightbox not .openLight B ox.