[2021/11/05 15:54:43] [WARN] File not found : css/holds.css at /usr/share/koha/Koha/Template/Plugin/Asset.pm line 107.
Coming from reserve/requests
Bug 28816, "Improve the display of multiple holds during hold process" added a new SCSS file, holds.scss, and it looks like the compiled version wasn't added.
New commit pushed commit ff2fbfe35f20e767d0c47374ef9d366e62b8e848 Bug 28816: (follow-up) Compiled CSS