The generator matrix

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

generates a code of length 54 over Z8 who´s minimum homogenous weight is 46.

Homogenous weight enumerator: w(x)=1x^0+43x^46+52x^47+212x^48+106x^49+382x^50+138x^51+606x^52+210x^53+655x^54+218x^55+539x^56+158x^57+401x^58+94x^59+157x^60+38x^61+41x^62+10x^63+13x^64+8x^66+4x^68+5x^70+3x^72+1x^74+1x^76

The gray image is a code over GF(2) with n=216, k=12 and d=92.
This code was found by Heurico 1.16 in 0.638 seconds.