What this means
Flipnote Studio received HTTP 500 and displayed it as 340500. The server encountered an internal error while handling that request.
What to try
- Wait briefly and reopen the page once.
- If the error followed an upload, comment or star action, check the result before repeating it. The server may have completed part of the action before returning the error.
- If one Flipnote or action consistently triggers it, contact RexiMemo support with the complete code, approximate time and a link to the affected Flipnote.
A DSi Internet connection test can succeed while an individual server request fails.
Technical reference
These explanations draw on the original Flipnote Studio V2 client research in Flipnote World — Hatena responses and errors.