---
title: "Error: Invalid/Expired session"
slug: "studio-throwing-error"
updated: 2025-06-24T07:00:18Z
published: 2025-06-24T07:00:18Z
canonical: "support.whatfix.com/studio-throwing-error"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://support.whatfix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Error: Invalid/Expired session

## Issue

- When you try to log in to the Whatfix Studio, you see the following error: ![](https://cdn.document360.io/a268766e-d74d-4619-9613-e2472f809ffb/Images/Documentation/image-R3UZMZ3P.png?sv=2026-02-06&spr=https&st=2026-11-12T07%3A59%3A21Z&se=2026-11-12T08%3A59%3A21Z&sr=c&sp=r&sig=Tvk%2BL4PmdB%2F9g8L%2BkkqreltU%2Fb8JxMDQHj%2FG1ZfOA6Y%3D)
- When you to launch Preview mode and the Preview mode toggle does not appear on any page, Whatfix Studio displays an **I****nvalid/Expired session** error message. Consequently, viewing or testing any widgets is not possible.

## Probable Cause

- Using an older studio extension.
- Attempting multiple login tries.

## Suggested Solution

- Delete the cache and try to log in again.
- Remove the current Whatfix Studio extension from your browser and reinstall the latest version of the extension from the [Chrome Web Store](/studio/docs/how-to-install-the-whatfix-editor).

> [!WARNING]
> Note
> 
> If the issue still persists, contact [support@whatfix.com.](mailto:support@whatfix.com?subject=Unable%20to%20log%20in%20to%20Whatfix%20Studio&body=Hi%2C%20%0A%0AI%20see%20a%20Invalid%2FExpired%20session%20error%20message.%0A%0AAccount%20details)