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Outlook Something went wrong Error

Neon Lee 130 Reputation points
2023-06-25T07:38:44.05+00:00

My Outlook Client For Windows can be used, but using outlook on the web, 500 error( something went wrong) happens. 

BootResult: fail
Back Filled Errors: None
err: System.MissingMethodException
esrc: StartupData
et: ServerError
estack: Error: 500
st: 500
ehk: X-OWA-Error
emsg: ErrorUnexpectedFailure
Microsoft 365
Microsoft 365
Formerly Office 365, is a line of subscription services offered by Microsoft which adds to and includes the Microsoft Office product line.
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Outlook
Outlook
A family of Microsoft email and calendar products.
3,138 questions
Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
4,267 questions
Accepted answer
  1. Faery Fu-MSFT 17,386 Reputation points Microsoft Vendor
    2023-06-26T07:13:10.3933333+00:00

    Hi @Neon Lee ,

    Based on my research, this may be related to the incident below, which has now been fixed. Please try again to see if it works for you.

    Screenshot 2023-06-26 150507

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

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    1 person found this answer helpful.

33 additional answers

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  1. Aaron _ 0 Reputation points
    2023-06-27T19:44:23.2566667+00:00

    Same issue. And it is only one old email account, a '@live.com'. I can sign into my other which is "@outlook.com". I can't sign into the 'live' account from my phone either. I've used two different devices, two different browsers, cleared caches, cleaned and restarted the PC and ran anti-malware. So its specifically one account, not the pc, browser or all of Outlook.

    0 comments
  2. RC 0 Reputation points
    2023-06-27T19:49:54.5266667+00:00

    Working now for me.

    0 comments
  3. Daniel RS 0 Reputation points
    2023-06-27T19:51:29.4566667+00:00

    It looks that is working now

    0 comments
  4. Hoppenworth, Summer 0 Reputation points
    2023-06-27T20:19:04.82+00:00

    Hey everyone! We were experiencing this same issue.

    The fix for us was to sign a user out of all of their Microsoft365 sessions via the admin center. The user was able to access email following this action. See picture below:

    User's image