Private uploads are inaccessible

[jinks]

Describe the bug
When I upload a private pastebin (SERVER encryption) the success page generates as 404 and even opening the slug via admin interface just gets me a 404

To Reproduce
Steps to reproduce the behavior:

1. Go to the homepage of your microbin
2. Click on Privacy -> Encrypted -> Private
3. Enter a Password
4. Enter Text into the pastebin
5. Click Save
6. See error 404

Expected behavior
A finished pastebin

Desktop (please complete the following information):

• OS: Linux
• Browser Firefox
• Version 142