The generator matrix

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

generates a code of length 50 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 90.

Homogenous weight enumerator: w(x)=1x^0+1514x^90+2286x^91+5706x^92+9708x^93+12690x^94+20790x^95+30282x^96+33198x^97+46620x^98+62444x^99+55602x^100+65556x^101+64614x^102+43032x^103+35802x^104+23838x^105+9768x^106+4842x^107+2146x^108+720x^109+18x^110+66x^111+132x^112+24x^114+36x^115+6x^120

The gray image is a code over GF(3) with n=450, k=12 and d=270.
This code was found by Heurico 1.16 in 411 seconds.