Hi there! I see you're getting a message that Edapt Learning App is already open in another browser, but you’re sure it isn’t. I can help you with that. To start, could you tell me if you’ve tried clearing your browser's cache and cookies already? This usually helps resolve such issues.

Meanwhile, here are some steps you can try:

1. Clear Cache and Cookies: Sometimes, stored temporary data can make the app think it’s open elsewhere. Clearing these usually fixes it. Since you’re using Windows with WebKit-based browser, go to your browser settings, find the section for clearing browsing data, and clear cache and cookies.

2. Close All Browser Tabs: Make sure no other tabs or windows have Edapt open, even in background or minimized.

3. Restart Your Browser: After clearing data, close and restart the browser completely.

4. Check Task Manager: Sometimes browser processes remain active in the background. On Windows, press Ctrl + Shift + Esc to open Task Manager, look for any browser processes (like WebKit), and end them.

5. Try a Different Browser: If possible, try opening Edapt in a different browser to check if the issue is browser-specific.

If you’ve already gone through these steps, let me know so we can try more advanced troubleshooting like checking your account sessions or network issues.

Are you able to try these and let me know how it goes?