The generator matrix

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

generates a code of length 56 over Z8 who´s minimum homogenous weight is 54.

Homogenous weight enumerator: w(x)=1x^0+20x^54+68x^55+88x^56+56x^57+10x^58+4x^59+6x^60+1x^64+2x^78

The gray image is a code over GF(2) with n=224, k=8 and d=108.
This code was found by Heurico 1.16 in 0.045 seconds.