The generator matrix

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

generates a code of length 22 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 36.

Homogenous weight enumerator: w(x)=1x^0+994x^36+1704x^37+4986x^38+9332x^39+20676x^40+26718x^41+68048x^42+64806x^43+85002x^44+124626x^45+66462x^46+36108x^47+16300x^48+5226x^49+246x^50+118x^51+48x^52+30x^53+10x^54

The gray image is a code over GF(3) with n=198, k=12 and d=108.
This code was found by Heurico 1.16 in 142 seconds.