Thanks yo8aiv same problem here and deactivating Two-Factor Gateway solved it for me too. That was the quickest errormessage to google to solution i have experienced so far!
Hey eehmke, what you are saying is right, but we are talking about the Two-Factor Gateway. I have never used it anyway and am not exactly sure what it does. As far as i remember I installed it hoping to get the Signal 2FA Channel up and running but never succeded.
ok . news.
after upgrading to 16.0.7 (previously on 16.0.6) Update channel: Production, seems this issue has dissapeared (with Two-Factor Gateway active).
cheers.
I just had the same issue with 16.0.7 after I changed the update channel from “Production” to “Stable”. Tried to switch back the update channel in the config.php, but no success.
Then I found this thread and disabled the Tow-Factor Gateway - problem fixed, update to 16.0.8 shown.
Exactly the same issue here with 16.0.7 + changing the update channel from “Production” to “Stable” + using the app “Two-Factor Gateway 0.15.1”.
Thanks all for finding this out!