Thanks both of you.
When i check for errors, there are none.
But in the compile log:
WARNING: Too many light styles on a face at (506.000000, 2102.000000, 57.000000)
WARNING: Too many light styles on a face at (1002.000000, 2102.000000, 57.000000)
WARNING: Too many light styles on a face at (10.000000, 2102.000000, 57.000000)
WARNING: Too many light styles on a face at (506.000000, 2102.000000, 295.000000)
WARNING: Too many light styles on a face at (1002.000000, 2102.000000, 295.000000)
WARNING: Too many light styles on a face at (10.000000, 2102.000000, 295.000000)
.WARNING: Too many light styles on a face at (506.000000, 2107.000000, 292.000000)
WARNING: Too many light styles on a face at (1002.000000, 2107.000000, 292.000000)
WARNING: Too many light styles on a face at (10.000000, 2107.000000, 292.000000)
WARNING: Too many light styles on a face at (1019.000000, 2056.000000, 292.000000)
WARNING: Too many light styles on a face at (5.000000, 2056.000000, 292.000000)
.4…5…6…7
WARNING: Too many light styles on a face at (506.000000, 2040.000000, 57.000000)
WARNING: Too many light styles on a face at (1002.000000, 2040.000000, 57.000000)
WARNING: Too many light styles on a face at (10.000000, 2040.000000, 57.000000)
WARNING: Too many light styles on a face at (664.000000, 1602.000000, 57.000000)
WARNING: Too many light styles on a face at (506.000000, 2040.000000, 295.000000)
WARNING: Too many light styles on a face at (1002.000000, 2040.000000, 295.000000)
WARNING: Too many light styles on a face at (10.000000, 2040.000000, 295.000000)
.WARNING: Too many light styles on a face at (10.000000, 1605.000000, 292.000000)
WARNING: Too many light styles on a face at (506.000000, 1605.000000, 292.000000)
WARNING: Too many light styles on a face at (712.500000, 1605.000000, 292.000000)
WARNING: Too many light styles on a face at (655.500000, 1605.000000, 292.000000)
WARNING: Too many light styles on a face at (655.500000, 1605.000000, 164.500000)
WARNING: Too many light styles on a face at (704.500000, 1605.000000, 162.000000)
WARNING: Too many light styles on a face at (655.500000, 1605.000000, 162.000000)
WARNING: Too many light styles on a face at (1019.000000, 1704.000122, 204.000061)
WARNING: Too many light styles on a face at (1019.000000, 1704.000000, 292.000000)
WARNING: Too many light styles on a face at (1019.000000, 1896.000000, 292.000000)
WARNING: Too many light styles on a face at (1019.000000, 1610.000000, 292.000000)
WARNING: Too many light styles on a face at (5.000000, 1610.000000, 292.000000)
…8
WARNING: Too many light styles on a face at (648.000000, 1592.000000, 56.000000)
…9…
WARNING: Too many light styles on a face at (636.000000, 1606.000000, 103.500000)
WARNING: Too many light styles on a face at (636.000000, 1604.500000, 109.000000)
10 (5)
uhm, what is this? 
And another question.
It is so frustrating when hammer crash without a warning. It often does when I click flags in light properties.
Does anyone know why?