The generator matrix

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

generates a code of length 56 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 99.

Homogenous weight enumerator: w(x)=1x^0+50x^99+18x^100+180x^101+290x^102+108x^103+474x^104+1406x^105+1080x^106+1488x^107+4576x^108+3960x^109+3414x^110+8800x^111+6534x^112+4302x^113+9586x^114+5076x^115+2544x^116+3182x^117+720x^118+564x^119+374x^120+138x^122+62x^123+18x^125+36x^126+36x^129+12x^132+12x^135+4x^138+4x^141

The gray image is a code over GF(3) with n=504, k=10 and d=297.
This code was found by Heurico 1.16 in 8.18 seconds.