The generator matrix

 1  0  1  1  1  6  1  1  4  1  2  1  1  4  1  0  1  1  1  1  6  1  2  1  1  1  1
 0  1  1  6  3  1  0  3  1  5  1  2  4  1  3  1  0  7  6  7  1  1  1  7  4  7  3
 0  0  2  0  6  0  6  0  2  4  2  2  2  6  0  0  4  2  4  6  0  6  6  6  6  6  2
 0  0  0  4  0  0  0  0  0  4  4  4  4  4  0  4  0  4  4  0  0  0  0  0  4  4  0
 0  0  0  0  4  0  0  4  4  4  4  4  0  0  4  0  0  0  0  4  0  4  0  0  4  4  0
 0  0  0  0  0  4  0  4  0  4  0  0  0  0  4  0  4  4  4  4  4  4  0  4  0  0  0
 0  0  0  0  0  0  4  0  4  0  4  0  0  4  4  4  4  4  0  0  4  4  0  0  4  0  0

generates a code of length 27 over Z8 who´s minimum homogenous weight is 21.

Homogenous weight enumerator: w(x)=1x^0+68x^21+111x^22+128x^23+325x^24+512x^25+596x^26+640x^27+596x^28+504x^29+306x^30+128x^31+97x^32+64x^33+4x^34+4x^36+4x^37+7x^38+1x^40

The gray image is a code over GF(2) with n=108, k=12 and d=42.
This code was found by Heurico 1.16 in 65.9 seconds.