503 on download content from public albums

[cypress-hill-car]

Describe the bug
Public shared albums don't play videos or download Pictures on download-button.

To Reproduce
Steps to reproduce the behavior:

1. make public share link
2. visit it
3. try to play a video or download a pictur
4. See error in browsers dev-tools

Screenshots
Non-Loading Video

Desktop (please complete the following information):

• OS: Windows
• Browser: all tested

Browser log

503 Error on Requesting https://my-domain.tld/public.php/dav/files/null/MWxI8UfSiPpw6T67WpdToxsOdb8eOh18/1458448-VID_20260429_132739_145.mp4 from "fetch"