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-4085

Notice

This document is a machine-translated draft and is currently undergoing review. Some content may be inaccurate or differ from the original Korean version. For the most precise information, refer to the Korean documentation.

  • Error code: -4085
  • Summary: Authentication token expiration and session validity period exceeded

Symptoms​

The video does not play, and a popup appears requesting you to log in again, or the following messages are displayed.

  • "ERROR_TOKEN_EXPIRED"
  • "Available period to play this content is expired. Please try again."

Causes​

  • Session (Token) expiration: Occurs when the browser's authentication token has exceeded its validity period because the page was left open for an extended time after logging into the website.
  • Duplicate access detected: Occurs when the same ID is used to access from another device (PC, smartphone, tablet, etc.) simultaneously, causing the authentication on the current device to be forcibly revoked.
  • Security module interference (macOS): On macOS, certain screen capture prevention programs may interfere with the player's authentication process, making it unable to read the token information.

Solutions​

  • Re-login and session update: Log out from the website, restart the browser, and log in again.
  • Clear browsing data: Enter the address below in the browser's address bar and delete cookies and cache.
    • Chrome: chrome://settings/clearBrowserData
    • Edge: edge://settings/clearBrowserData
  • Reinstall the player: Completely uninstall the existing Kollus Player app, then reinstall the latest version of the player.
  • Check for duplicate access: Verify whether the account is logged in on another PC or mobile device, log out from all devices, and play only on the current device.
    • If you need to remove the device limit restriction, please contact the customer support of the site you are using.
  • Quit capture programs (macOS): Completely quit all capture-related apps that are running, such as QuickTime Player, Screenshot, and Zoom.