The generator matrix

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

generates a code of length 63 over Z8 who´s minimum homogenous weight is 45.

Homogenous weight enumerator: w(x)=1x^0+64x^45+134x^46+148x^47+209x^48+442x^49+456x^50+622x^51+761x^52+1050x^53+1060x^54+1382x^55+1599x^56+2078x^57+2566x^58+3264x^59+4221x^60+4630x^61+5256x^62+5306x^63+5579x^64+4884x^65+4224x^66+3174x^67+2491x^68+2008x^69+1610x^70+1434x^71+1040x^72+924x^73+680x^74+720x^75+531x^76+382x^77+244x^78+186x^79+75x^80+46x^81+26x^82+20x^83+4x^84+2x^85+1x^88+2x^89

The gray image is a code over GF(2) with n=252, k=16 and d=90.
This code was found by Heurico 1.16 in 99.1 seconds.