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Getting this error when trying to sign into outlook from web page, phone and computer app on surface pro. I changed local app data (%LocalAppData%\Microsoft) Olk and Oneauth to Olk_old and Oneauth_old as one fix said to do. It didn't work, so I deleted the "old" files then did a clear of the cache (olk.exe --clearLocalState). I still get this error. Not sure why this is happening all of a sudden. Any other ideas?
UTC Date: 2026-08-31T20:29:12.640Z
Client Id: 68B5AE21994E48AC8D890E56772F49F1
Session Id: 4457c1c8-a258-4de3-acab-5af25047fa38
Client Version: 20260821009.09
BootResult: fail
Back Filled Errors: None
err: Error: 500
esrc: StartupData
et: ServerError
estack: Error: 500
at Object.w [as createStatusErrorMessage] (https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mailindex.491fdc82.js:1:806)
at https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mailindex.491fdc82.js:1:192520
st: 500
efe: MW4PR03CA0226
reqid: 17d852f0-ceed-0065-ea84-be70bc950015
cv: tQ+jF/oDd9fq1566UK3wwg.3.1.1
Sending, receiving, and organizing email in Outlook.com
Yes, there seems to be an outage at Microsoft right now. I don't know much about it, since I don't use Outlook myself. But as a moderator I have resurrected quite a few posts like yours tonight. Hopefully things start working in a couple of hours.
There was a serverwide outage that got fixed today
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