A discussion in the Support category addresses an error message: “Oops, the software powering this discussion forum encountered an unexpected problem.” nwnuyhs initially reported the issue, which was later resolved by running ./launcher rebuild app. tobiaseigen clarified that closing the browser during an update doesn’t necessarily cause the issue, as updates can continue, but a hard refresh may be needed. HamMan2118 suggested a command-line rebuild, and Lilly referenced past similar issues. nwnuyhs confirmed the site was restored after rebuilding, and Lilly responded with well wishes.
The software powering this discussion forum encountered an unexpected problem. We apologize for the inconvenience.
Detailed information about the error was logged, and an automatic notification generated. We’ll take a look at it.
No further action is necessary. However, if the error condition persists, you can provide additional detail, including steps to reproduce the error, by posting a discussion topic in the site’s feedback category.
I’m afraid that’s a very generic message and we’ll need more details to help you out.
Are there any more details in your /logs or in the browser console? Does it work in safe mode?
You can also try a Command Line rebuild - which is explained here: Manually update Discourse and Docker image to latest
@nwnuyhs, checking in, did you end up figuring out what the issue was?
The reason may be that the browser was closed during the update process. Finally, use ./launcher rebuild app to solve the problem.
This is not correct. You can close the browser during the update process and it will still continue.
It is possible that the update was not yet finished. Sometimes you have to wait a few minutes and then after a hard refresh the site will come back.
But yes if you can the command line update is always going to work more smoothly, though your site will be offline during the entire update process which can take a little while depending on what all is being updated.
Oops
The software powering this discussion forum encountered an unexpected problem. We apologize for the inconvenience.
Detailed information about the error was logged, and an automatic notification generated. We’ll take a look at it.
No further action is necessary. However, if the error condition persists, you can provide additional detail, including steps to reproduce the error, by posting a discussion topic in the site’s feedback category.
i think you had this issue before?
Hello,MS.Lily，
Happy new year,
thanks for your reminder,
I rebuild,now the website is ok
Thank you 
Happy new year to you too! I am glad you have your site back up and running.