The generator matrix

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

generates a code of length 56 over Z8 who´s minimum homogenous weight is 46.

Homogenous weight enumerator: w(x)=1x^0+70x^46+124x^47+548x^48+620x^49+1239x^50+1432x^51+2087x^52+2476x^53+2994x^54+2964x^55+3399x^56+3212x^57+3204x^58+2404x^59+2217x^60+1364x^61+1044x^62+592x^63+430x^64+136x^65+111x^66+36x^67+48x^68+8x^70+6x^72+2x^74

The gray image is a code over GF(2) with n=224, k=15 and d=92.
This code was found by Heurico 1.16 in 27.2 seconds.