The generator matrix

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

generates a code of length 48 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 90.

Homogenous weight enumerator: w(x)=1x^0+492x^90+558x^91+1908x^92+2568x^93+1080x^94+2538x^95+2588x^96+1080x^97+2184x^98+1838x^99+720x^100+1134x^101+834x^102+96x^103+6x^104+16x^105+24x^106+6x^109+6x^110+6x^111

The gray image is a code over GF(3) with n=432, k=9 and d=270.
This code was found by Heurico 1.16 in 0.612 seconds.