The generator matrix

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

generates a code of length 94 over Z8 who´s minimum homogenous weight is 68.

Homogenous weight enumerator: w(x)=1x^0+49x^68+53x^70+143x^72+184x^74+223x^76+10x^77+284x^78+38x^79+323x^80+92x^81+408x^82+192x^83+468x^84+442x^85+385x^86+1054x^87+492x^88+2204x^89+479x^90+3578x^91+431x^92+4666x^93+422x^94+4678x^95+426x^96+3576x^97+437x^98+2238x^99+410x^100+1046x^101+446x^102+434x^103+446x^104+204x^105+432x^106+70x^107+348x^108+44x^109+269x^110+4x^111+190x^112+4x^113+174x^114+2x^115+107x^116+84x^118+27x^120+29x^122+10x^124+9x^126+1x^130+2x^132

The gray image is a code over GF(2) with n=376, k=15 and d=136.
This code was found by Heurico 1.16 in 99 seconds.