The generator matrix

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

generates a code of length 56 over Z8 who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+141x^48+56x^49+382x^50+296x^51+683x^52+520x^53+816x^54+684x^55+1219x^56+636x^57+780x^58+512x^59+576x^60+320x^61+286x^62+44x^63+129x^64+4x^65+58x^66+28x^68+14x^70+6x^72+1x^76

The gray image is a code over GF(2) with n=224, k=13 and d=96.
This code was found by Heurico 1.16 in 2.51 seconds.