The generator matrix

 1  0  1  1  1  1  1  0  1  0  1  1  1  1  0  1  1  1  1  0  1  X  1  0  1  1  X  1  1  1
 0  1  1  2  0  1  2  1 2X+1  1  0  2  0 X+1  1  2  X 2X+1  0  1 2X+1  1  1  1  X  1  1  X X+1  0
 0  0 2X  0  0  0  0  0  0  0 2X 2X 2X  X 2X  X 2X 2X  X  0  X 2X  0 2X  X  X  0 2X  X  0
 0  0  0  X  0  0  0  X 2X  X  X  0 2X 2X  0  X 2X 2X  0  0 2X  X 2X  0  0  X 2X 2X  X  0
 0  0  0  0  X  0  X  X  X  X 2X 2X  0  X  0  X  X 2X  X  X 2X 2X  X  X  0  0  X  0  0  0
 0  0  0  0  0 2X 2X  0 2X  X 2X  0  X  X 2X 2X  X 2X 2X 2X 2X  X  X 2X  X 2X 2X  0  0  X

generates a code of length 30 over Z3[X]/(X^2) who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+36x^48+30x^50+214x^51+18x^52+114x^53+472x^54+144x^55+222x^56+626x^57+432x^58+396x^59+858x^60+576x^61+426x^62+808x^63+288x^64+210x^65+452x^66+60x^68+102x^69+40x^72+20x^75+14x^78+2x^81

The gray image is a linear code over GF(3) with n=90, k=8 and d=48.
This code was found by Heurico 1.16 in 0.256 seconds.