The generator matrix

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

generates a code of length 69 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 135.

Homogenous weight enumerator: w(x)=1x^0+276x^135+504x^136+774x^138+342x^139+30x^141+72x^142+126x^144+54x^145+6x^150+2x^162

The gray image is a code over GF(3) with n=621, k=7 and d=405.
This code was found by Heurico 1.16 in 0.125 seconds.