my light grid wont work and i am having coloring issues because of it. how do i fix it. there is a lightgrid and a reflection probe

Make a box around your map of caulk.
Hollow.
select the inside faces. (ctrl shift click)

Give it a skybox texture from the texture list.

Make a box around your map of caulk.
Hollow.
select the inside faces. (ctrl shift click)

Give it a skybox texture from the texture list.

i have a skybox box. it still is all messed up reflections are to bright and nothing is the color it should be

have you selected compile lights and reflections in launcher?

Yes