The generator matrix

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

generates a code of length 58 over Z8 who´s minimum homogenous weight is 50.

Homogenous weight enumerator: w(x)=1x^0+279x^50+264x^51+798x^52+564x^53+1304x^54+996x^55+1912x^56+1268x^57+1829x^58+1188x^59+1794x^60+1052x^61+1299x^62+588x^63+652x^64+188x^65+236x^66+36x^67+79x^68+41x^70+7x^72+4x^74+5x^76

The gray image is a code over GF(2) with n=232, k=14 and d=100.
This code was found by Heurico 1.16 in 50.5 seconds.