The generator matrix

 1  0  0  1  1  1  X  1  1  0  0  X  1  1  1  0  X  0  0  X  0  1  1  1  1  1  1  1  X  0  X  0  X  0  X  0  1  1  1  1  0  X  1  1  1  1  0  X  1  1  0  1  1  0  1  1  X  0  1  X  X  1  1  0  0  X  X  0
 0  1  0  0  1  1  1  0  X  X  1  1  1  1  X  1  1  X  1  1  X  0  1 X+1  0  0 X+1  1  1  1  1  1  1  1  1  1  0  0  X  0  1  1  0  X  0  0  1  1  0  X  1  X  X  1  X  0  1  X  X  X  1  0  0  0  0  X  X  X
 0  0  1  1  1  0  1  X X+1  1  0  1 X+1  0  X  X  1  1  0 X+1  1 X+1  1  0  X X+1  1  X X+1 X+1 X+1  1  1  1  1  1  0  X  1 X+1  0  0  X  X  1  1  X  0  0 X+1  0  0  1  X  X  0  X  X  1  X  X  1  X  0  X  0  0  0
 0  0  0  X  0  0  0  0  0  0  0  0  X  X  X  X  X  X  X  X  X  0  X  X  X  X  0  0  0  0  X  X  0  X  X  0  0  X  0  X  X  0  0  X  X  0  X  0  X  X  X  X  X  X  0  0  0  X  0  0  0  0  0  X  0  0  0  0
 0  0  0  0  X  0  0  X  X  X  X  X  0  X  0  X  0  0  0  X  X  X  X  X  X  0  0  0  X  0  X  0  0  X  X  0  0  0  0  X  0  0  X  X  X  0  X  X  0  0  X  X  0  0  0  X  0  X  X  X  X  X  0  X  X  X  X  0
 0  0  0  0  0  X  0  0  0  X  X  X  0  X  0  0  X  X  X  0  0  X  0  0  0  X  0  0  0  X  X  0  X  X  X  X  X  X  X  0  0  X  X  X  X  0  X  0  0  0  0  0  X  X  0  0  0  X  X  0  X  0  0  X  X  X  0  0

generates a code of length 68 over Z2[X]/(X^2) who´s minimum homogenous weight is 63.

Homogenous weight enumerator: w(x)=1x^0+104x^63+81x^64+91x^66+48x^67+68x^71+36x^72+28x^74+16x^75+16x^79+10x^80+8x^82+4x^87+1x^98

The gray image is a linear code over GF(2) with n=136, k=9 and d=63.
This code was found by Heurico 1.16 in 432 seconds.