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

generates a code of length 93 over Z8 who´s minimum homogenous weight is 78.

Homogenous weight enumerator: w(x)=1x^0+58x^78+88x^79+189x^80+306x^81+418x^82+410x^83+536x^84+762x^85+911x^86+1020x^87+1286x^88+1682x^89+2155x^90+2528x^91+2695x^92+2802x^93+2657x^94+2474x^95+2206x^96+1820x^97+1277x^98+1030x^99+802x^100+654x^101+493x^102+404x^103+334x^104+250x^105+171x^106+96x^107+117x^108+38x^109+46x^110+14x^111+24x^112+6x^113+3x^114+2x^116+2x^118+1x^142

The gray image is a code over GF(2) with n=372, k=15 and d=156.
This code was found by Heurico 1.16 in 99.9 seconds.