The generator matrix

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

generates a code of length 9 over Z5[X]/(X^2) who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+32x^30+48x^35+500x^36+24x^40+20x^45

The gray image is a linear code over GF(5) with n=45, k=4 and d=30.
This code was found by Heurico 1.16 in 0.000297 seconds.