The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  X  X  0  X  X  0  X
 0  X 2X  0 X+6 2X X+6 2X+3  0  3  0  3 X+6 X+3  3 2X 2X+6 X+6  X  3  X  6  X 2X 2X+6 2X+6 2X+6 X+6 2X  X X+6 2X  X  0
 0  0  3  0  3  0  6  6  3  6  3  6  6  0  3  0  6  3  3  0  6  6  0  3  0  3  6  6  0  0  6  3  0  0
 0  0  0  3  6  3  3  6  6  3  0  6  6  6  3  6  3  0  3  6  0  0  3  6  0  3  0  6  0  3  3  6  6  0

generates a code of length 34 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 63.

Homogenous weight enumerator: w(x)=1x^0+150x^63+162x^64+276x^66+648x^67+72x^69+648x^70+108x^72+120x^75+2x^81

The gray image is a code over GF(3) with n=306, k=7 and d=189.
This code was found by Heurico 1.16 in 0.0252 seconds.