The generator matrix

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

generates a code of length 63 over Z3[X]/(X^2) who´s minimum homogenous weight is 123.

Homogenous weight enumerator: w(x)=1x^0+342x^123+226x^126+54x^129+60x^132+12x^135+30x^141+4x^144

The gray image is a linear code over GF(3) with n=189, k=6 and d=123.
This code was found by Heurico 1.16 in 3.87 seconds.