@contacto49959
Hmmmm, i do not know how you could place your Wix-Chat on a page, because when i am adding the Wix-Chat-App, it is automaticaly added to all pages.
AS you can see here…
…the imported window module on the master-page is working.
What is the ID of your chat? Perhaps wrong-ID ?
Your Lightbox is called —> “MobileMenuCopy” ?
Do you have created a Lightbox in your Wix-Editor?
Check every line in your code.
And what is the exact error-description in CONSOLE when using —> CHROME ?