Layers not printing in my 3d print

[jkohan]

When I print some things on my ender 5 S1, some random layers are missing, causing gaps and separation within the print. I tried printing at a higher temperature and it slightly helped, but there are still missing layers showing up. Does anyone know what could be causing it/some could be some potential fixes? I attached a few pictures to describe my issue. 

[-niels-]

This isn't really a forum for 3D printing questions like these, but i'd start with checking for clogs in your nozzle, then filament feed (skipping), z-axis binding and the consistency of the filament diameter.
It looks like a machine issue to me, not something to do with the 3D model or the sliced flile.

Hope you can get it fixed, good luck!