Volumetric Fog Makes the Scene Faded

Hey SO I was working on this level today (photos attached) and when I built the Lighting Using Volumetric Fog, the Scene Just Looked Like it was Faded Out but as soon as I turned the Volumetric Fog Off, the Scene Returned to its Normal Looks. Can Anyone Explain Me Why is this Happening and How can It be Fixed?

Thanks for the Help!