The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  3  1  1  1  1  1  1  X  0  1  1  1  1
 0  X 2X  0 X+6 2X  3 2X+3 X+6 X+6 2X  0  3 X+6 2X 2X+3  0 X+6  3 X+3 2X 2X+3 2X+6 X+3 2X+3 X+6  3 X+3  6 X+3 X+3 X+6 X+3 X+6 X+3 X+3  X 2X 2X 2X+3 2X 2X+3 2X+3 2X+6 X+6  0  0  0  3  3  6  6  0  0  6 X+3 2X+6 2X  3 2X+3 2X 2X  3  0  6 2X+3 2X+6 2X+3 2X+3 2X+6  3  3  3  0  6 X+6 X+6 X+3  X X+6  X  X  X  X X+3 X+6  3 X+3  X  X  6  3  3 2X  X 2X X+3  0 2X
 0  0  3  0  0  0  0  6  6  3  3  3  6  3  0  3  3  6  6  6  6  6  0  0  3  3  3  0  6  3  6  6  6  3  0  0  3  0  0  3  3  3  0  0  6  0  6  3  6  6  6  6  3  0  3  6  6  6  0  0  3  3  3  3  6  6  6  0  6  6  3  0  6  0  0  6  3  0  6  0  3  0  6  0  3  3  0  6  3  3  0  3  0  0  3  3  0  0  0
 0  0  0  3  0  0  6  0  0  0  0  0  3  6  6  3  6  3  6  6  6  3  3  6  6  6  3  3  0  3  3  6  0  0  3  6  3  0  6  6  6  0  6  0  6  0  6  0  6  0  3  0  6  0  0  6  0  3  3  3  3  3  3  3  3  6  0  3  6  3  6  6  3  3  6  3  0  6  0  0  6  0  0  3  6  3  0  0  6  3  3  0  0  0  3  0  0  6  6
 0  0  0  0  6  6  0  3  6  3  6  3  6  0  6  0  3  6  6  6  3  3  6  0  0  3  3  0  6  3  3  3  3  0  6  6  0  0  3  3  6  3  0  3  0  3  3  0  0  0  3  3  6  6  6  0  0  0  3  0  3  6  6  0  0  0  6  3  6  6  0  6  0  6  3  0  6  3  6  3  6  3  3  3  3  6  0  0  0  3  3  0  6  0  3  3  0  3  0

generates a code of length 99 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 189.

Homogenous weight enumerator: w(x)=1x^0+112x^189+456x^192+576x^195+1458x^196+972x^197+398x^198+1944x^200+174x^201+144x^204+78x^207+126x^210+90x^213+30x^216+2x^288

The gray image is a code over GF(3) with n=891, k=8 and d=567.
This code was found by Heurico 1.16 in 1.01 seconds.