The generator matrix

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

generates a code of length 54 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 46.

Homogenous weight enumerator: w(x)=1x^0+43x^46+52x^47+212x^48+106x^49+382x^50+138x^51+606x^52+210x^53+655x^54+218x^55+539x^56+158x^57+401x^58+94x^59+157x^60+38x^61+41x^62+10x^63+13x^64+8x^66+4x^68+5x^70+3x^72+1x^74+1x^76

The gray image is a code over GF(2) with n=216, k=12 and d=92.
This code was found by Heurico 1.16 in 0.776 seconds.