The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  0  2  4  1  1  2  0  1  4  1  1  1  1  1  4  2  0  1  2  1  2  2  2  1  2  1
 0  2  0  0  0  2  6  2  0  0  4  2  4  2  6  2  2  4  0  2  6  2  2  6  6  2  2  0  4  4  0  6  4  0  4  6  4  0  2  0  2  0  0  0  0  4  2  6  0  6  4  0  6  0  2  4
 0  0  2  0  2  2  6  0  0  4  2  2  2  6  4  0  0  0  0  2  2  4  4  0  4  2  2  4  0  6  2  0  2  2  6  0  2  4  4  2  4  2  0  4  2  2  4  6  4  0  0  6  0  0  0  4
 0  0  0  2  2  0  6  2  4  2  2  0  4  6  0  2  6  2  0  6  4  0  2  4  0  2  0  6  0  4  0  0  2  4  6  0  4  2  2  6  4  4  2  4  6  4  2  2  2  6  6  6  0  6  6  6
 0  0  0  0  4  0  0  0  0  0  0  4  4  4  0  4  0  0  0  4  0  4  4  4  4  4  0  4  4  0  0  4  4  4  4  4  0  4  0  4  0  4  4  0  0  4  4  0  4  0  4  0  0  0  4  4
 0  0  0  0  0  4  0  4  4  0  4  4  0  4  4  4  0  4  0  0  4  0  0  4  4  0  0  0  0  4  4  4  4  4  0  4  0  4  0  0  4  0  0  4  4  4  0  0  0  0  0  0  4  4  4  0
 0  0  0  0  0  0  4  4  0  4  4  4  0  4  4  0  4  4  4  4  4  4  4  0  4  0  4  4  0  4  4  4  4  0  4  0  0  0  0  0  0  4  0  4  4  0  0  0  4  4  0  4  4  0  4  0

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

Homogenous weight enumerator: w(x)=1x^0+116x^48+322x^50+529x^52+730x^54+829x^56+724x^58+400x^60+204x^62+149x^64+58x^66+22x^68+10x^70+1x^72+1x^84

The gray image is a code over GF(2) with n=224, k=12 and d=96.
This code was found by Heurico 1.16 in 0.883 seconds.