Hi Geovana Alves,
Welcome to Microsoft Community. Thank you for reaching out.
I understand you're experiencing difficulties logging into Microsoft Office Online. I appreciate you providing the error message and technical details.
Based on the information you've shared, here are a few steps you can try while we investigate further:
- Clear Browser Cache and Cookies: Cached credentials can sometimes interfere with login. Please clear your browser’s cache and cookies and try again.
- Use a Private/Incognito Window: Open a private browsing session and attempt to log in again. This helps isolate any session conflicts.
- Sign Out of All Microsoft Account: If you’ve previously logged in with multiple accounts, sign out of all Microsoft accounts and then log in using only one (either student or personal).
- Try a Different Browser or Device: Occasionally, browser-specific issues can cause login failures. Switching browsers or devices may help.
If the issue persists after trying these steps, please don’t hesitate to let me know. I am here to assist further. If I misunderstood what you’re looking for, feel free to let me know or share a screenshot. I’d be happy to help further!
Thank you for your cooperation.
Warm regards,
Alex - MSFT | Microsoft Community Support Specialist