The generator matrix

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

generates a code of length 31 over Z8 who´s minimum homogenous weight is 24.

Homogenous weight enumerator: w(x)=1x^0+74x^24+72x^25+151x^26+168x^27+459x^28+184x^29+876x^30+184x^31+853x^32+184x^33+432x^34+152x^35+132x^36+72x^37+66x^38+8x^39+16x^40+9x^42+1x^44+2x^46

The gray image is a code over GF(2) with n=124, k=12 and d=48.
This code was found by Heurico 1.16 in 0.382 seconds.