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Lighting problems! Lightmaps ?

Hi everyone, I need some help to fix the lighting on this door. I already setup the lightmaps (Not sure if I did it right), the lighting looks very wrong on the door especially on the bottom square where there seems to be weird shadows. I made the door model in Blender and textured in Quixel Mixer. The model looked alright in both software, I made sure to set up the custom light map for this. the res is 1080 for the lightmap.
Also, for some reason the color if the door goes from white(as it should be) to grey when I set the mesh from static to movable. I want to fix that too but first I want to fix the lighting.

I can upload the door model if any one is willing to see what’s wrong with it.

https://scontent.fatl1-2.fna.fbcdn.net/v/t1.0-9/117971869_4843206189038345_6394608948776539273_o.jpg?_nc_cat=107

https://scontent.fatl1-2.fna.fbcdn.net/v/t1.0-9/118114820_4843207309038233_52273103703066515_o.jpg?_nc_cat=107

https://scontent.fatl1-2.fna.fbcdn.net/v/t1.0-9/117890072_4843208409038123_5945489322943613349_o.jpg?_nc_cat=107

model:
https://drive.google.com/file/d/18nst7ZG6qlrzyxPr_t1eNsXEGCInE3E8/view?usp=sharing