Hello, I just tried sending a personal message to a new user and upon submitting received an internal server error message, no other info. I tried again by clicking “send message” on that user’s profile card, same thing. I’ve already managed to send personal messages to groups in that past, of that I’m sure. Where do I start looking/troubleshooting? Or anybody “guess-know” what might be going on? [Screenshot 2026-07-22 at 14.57.47]

Are you able to update to latest version of Discourse?

[画像] stephtara: received an internal server error message a pop up? or console message? Try to capture a screen shot or copy paste the error so we can see please

Added screenshot to post, sorry didn’t do it directly!

Internal Server Errors are combined with an entry in /logs - share the corresponding error and the backtrace (browser console can sometimes help, but ultimately this is something that snapped in the back end :collision: )

Job exception: unknown keyword: :private_message_context And under backtrace I have a whole lot of stuff, should I copy it all here? Oh wait seems I didn’t look at the time correctly, might be this actually: ArgumentError (unknown keyword: :private_message_context) lib/plugin/instance.rb:460:in ‘Kernel#public_send’ lib/plugin/instance.rb:460:in ‘block (2 levels) in Guardian#add_to_class’ lib/topic_creator

[Screenshot 2026-07-22 at 15.09.29] I can do an update but it’ll have to be a little later (in a couple of hours), last two times I did it I ended up having to troubleshoot stuff on the server so I want to do it when I have a bit more time before me than right now (appointment coming up). Worth doing before worrying more about this error? Can this have anything to do with the fact I have disabled private messages except to staff (IIRC, need to double-check) – but shouldn’t I, as admin, be able to message anybody?

[画像] stephtara: Worth doing before worrying more about this error? Yeah, most of the time, it’s worth being on latest version. Just in case the bug’s already been fixed. Could also be an incompatibility with a plugin. [画像] stephtara: Can this have anything to do with the fact I have disabled private messages except to staff (IIRC, need to double-check) – but shouldn’t I, as admin, be able to message anybody? Maybe, although it’s the first time I’ve heard about this specific error.

Hiya! Updated, and indeed, the problem is solved! Thanks so much :slight_smile: So to answer my question, first troubleshooting step = update Discourse :wink:

[画像] stephtara: first troubleshooting step = update Discourse :wink: Yeah. Rebuilding and updating Discourse can solve most problems :slight_smile: It still looks like some kind of magic to me.

[画像] stephtara: first troubleshooting step = update Discourse :wink: Yeah, Discourse moves so fast that bugs are often quickly discovered and fixed. This is both a blessing and a curse though (some people want stability, others want all the latest new toys). Glad your issues are fixed :+1:

新規ユーザーに個人メッセージを送信しようとすると内部サーバーエラーが発生。どこから手をつける？アイデアは？

製品サポートインストール

zogstrip (Régis HANOL) 2026 年 7 月 22 日午後 1:08 6

Discourseの最新バージョンにアップデートすることはできますか？

トピック		返信	表示
"Internal Server Error" when sending message Product Support multi-lingual	1	123	2025 年 5 月 13 日
The user cannot see his personal message Product Support personal-messages	11	1039	2023 年 11 月 29 日
Internal Server Error when creating new topic Bug	2	212	2025 年 4 月 7 日
Private Message Send API Product Support	21	5919	2021 年 4 月 26 日
Link to private message a user from outside via URL Plugin	2	2652	2015 年 11 月 24 日

新規ユーザーに個人メッセージを送信しようとすると内部サーバーエラーが発生。どこから手をつける？アイデアは？

関連トピック