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

generates a code of length 99 over Z8 who´s minimum homogenous weight is 90.

Homogenous weight enumerator: w(x)=1x^0+199x^90+12x^91+278x^92+60x^93+352x^94+136x^95+394x^96+204x^97+391x^98+224x^99+392x^100+180x^101+392x^102+120x^103+235x^104+68x^105+149x^106+20x^107+106x^108+76x^110+49x^112+37x^114+16x^116+4x^118+1x^152

The gray image is a code over GF(2) with n=396, k=12 and d=180.
This code was found by Heurico 1.16 in 33 seconds.