The generator matrix

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

generates a code of length 36 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 63.

Homogenous weight enumerator: w(x)=1x^0+220x^63+150x^64+222x^65+604x^66+366x^67+756x^68+1394x^69+1746x^70+2226x^71+3466x^72+2838x^73+2262x^74+1660x^75+522x^76+234x^77+470x^78+180x^79+114x^80+150x^81+18x^82+18x^83+40x^84+12x^85+8x^87+6x^90

The gray image is a code over GF(3) with n=324, k=9 and d=189.
This code was found by Heurico 1.16 in 1.13 seconds.