The generator matrix

 1  0  1  1  1  1  1 X+6  1  1  1 2X  1  1  1  0  1  1  1  1  1  3  X  1
 0  1 2X+7  8 X+1 X+6 X+5  1 2X  7 2X+8  1 2X+7  0  8  1 X+5  2 X+2  3 2X+4  1 2X+6 2X+2
 0  0  6  0  3  6  3  3  0  6  0  0  3  6  3  3  0  3  3  3  0  6  3  6

generates a code of length 24 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 45.

Homogenous weight enumerator: w(x)=1x^0+320x^45+504x^46+258x^48+720x^49+292x^51+72x^52+18x^54+2x^60

The gray image is a code over GF(3) with n=216, k=7 and d=135.
This code was found by Heurico 1.16 in 1.45 seconds.