The generator matrix

 1  0  1  1  1  1  1  0  X  1  1  1  1  1  0  1 2X  1  1  1  1  0  1  1  1  0  1  1  1  1  1  1  1  1  1  1  X  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  1  1  2  0 2X+1  2  1  1  X 2X+1  2 2X+1  0  1 2X  1 2X+1  2  0 2X  1  1 X+2  0  1  2 2X+1 X+1 X+2  0 X+1  X X+1  X 2X  1 2X+1 X+2 2X 2X+2  X X+2 X+1  X X+2 2X  X  X  X 2X+1 2X X+1
 0  0 2X  0  0 2X  0  X 2X  0  X  0  X  X  0 2X  0 2X  X 2X  X  0  X 2X  X  X  X  0  0  0 2X  0 2X  0 2X 2X 2X 2X  X  X 2X  X 2X  X  X 2X  X 2X  X  0  0  X 2X
 0  0  0  X  0 2X 2X 2X  X  0  0 2X  X 2X  0  X  0 2X  0  X 2X 2X  0  X  X  X 2X  X  X  0  0 2X 2X 2X 2X 2X 2X  0 2X  0  X  0  0  X  X  X 2X  0 2X  X 2X  X 2X
 0  0  0  0  X  X  X  0  0 2X 2X 2X  0 2X  X  X 2X 2X  0 2X  X  0  X  0  0  0  0  X 2X  0  0  X  X 2X  0 2X 2X 2X  X  0 2X  X 2X  0 2X  X  0  X 2X  X 2X  X  0

generates a code of length 53 over Z3[X]/(X^2) who´s minimum homogenous weight is 99.

Homogenous weight enumerator: w(x)=1x^0+398x^99+438x^102+342x^105+454x^108+318x^111+108x^114+96x^117+18x^120+10x^126+4x^135

The gray image is a linear code over GF(3) with n=159, k=7 and d=99.
This code was found by Heurico 1.16 in 34.7 seconds.