The generator matrix

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

generates a code of length 67 over Z8 who´s minimum homogenous weight is 45.

Homogenous weight enumerator: w(x)=1x^0+46x^45+122x^46+144x^47+277x^48+356x^49+486x^50+612x^51+856x^52+820x^53+805x^54+878x^55+746x^56+740x^57+735x^58+1028x^59+1134x^60+1704x^61+2259x^62+3006x^63+3518x^64+4756x^65+5001x^66+5552x^67+4812x^68+4804x^69+3632x^70+3108x^71+2188x^72+1750x^73+1099x^74+836x^75+705x^76+740x^77+860x^78+926x^79+869x^80+824x^81+734x^82+610x^83+466x^84+356x^85+306x^86+152x^87+103x^88+30x^89+25x^90+10x^91+2x^92+2x^93+2x^95+2x^96+1x^100

The gray image is a code over GF(2) with n=268, k=16 and d=90.
This code was found by Heurico 1.16 in 99.4 seconds.