Several Gemini users have reported seeing an “Error 1099” when they try to use Gemini on the web or on their Android devices. The error reportedly affects both free and paid users and is particularly noticeable when activating Gemini on a Pixel phone using the side button. Some experts claim it is a server-side error caused by an authentication issue or context overflow. While there is no official guidance from Google on how to fix the error, user-suggested troubleshooting steps include switching to Google Assistant in the Google app settings, restarting the device, and switching back to Gemini, or uninstalling the Google app and Gemini launcher, updating to the latest Play Services update, and reinstalling them. The error is acknowledged as a bug on the Google Issue Tracker, but there is no update or clarity from a Google staffer yet.