If you use Default Folder, it is currently not compatible with 10.11. The developer does post a work-around that requires turning off certain critical protections, but also states that a fully compatible version 5 is in the works.

On a Mac since 1984.
Currently: 24" M1 iMac, M2 Pro Mac mini with 27" BenQ monitor, M2 Macbook Air, MacOS 14.x; iPhones, iPods (yes, still) and iPads.