The generator matrix

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

generates a code of length 54 over Z8 who´s minimum homogenous weight is 45.

Homogenous weight enumerator: w(x)=1x^0+308x^45+858x^46+1428x^47+2095x^48+2984x^49+4064x^50+4920x^51+5848x^52+6502x^53+6898x^54+6880x^55+6176x^56+5364x^57+4102x^58+2880x^59+1830x^60+1092x^61+688x^62+316x^63+168x^64+68x^65+26x^66+24x^67+10x^68+2x^69+4x^70

The gray image is a code over GF(2) with n=216, k=16 and d=90.
This code was found by Heurico 1.11 in 46.7 seconds.