The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+1836x^90+2244x^91+5382x^92+9884x^93+12684x^94+19722x^95+28800x^96+35520x^97+47880x^98+59136x^99+61002x^100+64260x^101+61880x^102+45432x^103+33816x^104+23046x^105+10254x^106+5256x^107+2570x^108+474x^109+72x^110+128x^111+42x^112+30x^113+66x^114+18x^115+6x^117

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 431 seconds.