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

generates a code of length 45 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 84.

Homogenous weight enumerator: w(x)=1x^0+518x^84+162x^86+864x^87+486x^88+648x^89+1136x^90+972x^91+648x^92+656x^93+216x^96+184x^99+68x^102+2x^117

The gray image is a code over GF(3) with n=405, k=8 and d=252.
This code was found by Heurico 1.16 in 4.86 seconds.