Assets issue

[quanndh]

Im using next and it said
./node_modules/react-chat-window/es/assets/close-icon.png 1:0
Module parse failed: Unexpected character '�' (1:0)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
(Source code omitted for this binary file)

The first issue is the notification.mp3 file, I deleted this file and comment all code that using it. Then the next occur with icon