The generator matrix

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

generates a code of length 54 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 99.

Homogenous weight enumerator: w(x)=1x^0+606x^99+252x^100+612x^101+2442x^102+2448x^103+2844x^104+4704x^105+4626x^106+5868x^107+6858x^108+7902x^109+6462x^110+5730x^111+3492x^112+1692x^113+1470x^114+234x^115+18x^116+472x^117+234x^120+72x^123+10x^126

The gray image is a code over GF(3) with n=486, k=10 and d=297.
This code was found by Heurico 1.16 in 13.8 seconds.