Didn’t see your sample: I don’t make a habit of going to strangers’ Drop Boxes. But.
If this was not a DSLR, I would advise adjusting the variable frame speed, what Sony calls: “Clear Scan”. I need to sometimes do this when the lighting is LED-based. I don’t know that DSLR’s have a similar function.
This might be somewhat repairable in post, using color correction tools to select a narrow range and then adjusting just that band to “blow-out” in a steady color/light level. Not perfect, but sometimes saves the shot. There is also some DSLR software that can treat the issue in-camera with a corresponding variance in shutter, but I don