The generator matrix

 1  0  0  0  1  1  1  6  1  1  1  1
 0  1  0  0  2  1  3  1  2  2  0  0
 0  0  1  0  3  1  6  3  0  2  2  0
 0  0  0  1  1  6  3  3  1  3  1  0
 0  0  0  0  4  0  0  4  0  4  4  0
 0  0  0  0  0  4  0  4  4  4  4  0
 0  0  0  0  0  0  4  4  4  4  0  0

generates a code of length 12 over Z8 who´s minimum homogenous weight is 6.

Homogenous weight enumerator: w(x)=1x^0+63x^6+236x^7+759x^8+1852x^9+3011x^10+8152x^11+4625x^12+8152x^13+3005x^14+1852x^15+756x^16+236x^17+65x^18+3x^20

The gray image is a code over GF(2) with n=48, k=15 and d=12.
This code was found by Heurico 1.16 in 0.742 seconds.