"To get it working again we must go to "/opt/whatsapp-desktop/resources/app" and edit the file "main.js" as root and look for the line that says whatsApp.window.loadURL('https://web.whatsapp.com'); Just above this line we add this other whatsApp.window.webContents.setUserAgent("Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36"); And we save the file Then we go to "/home/myuser/.config/whatsapp-desktop/Service Worker" directory and empty it completely. Close Wathsapp application if we have it open and open a super user console and execute the command "chmod -w /home/myuser/.config/whatsapp-desktop/Service Worker/ -R" with the application closed and the directory empty. Start Whatsapp desktop and pair again. I hope it serves you. Sorry for my English. I use a translator"