The generator matrix

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

generates a code of length 50 over Z3[X]/(X^2) who´s minimum homogenous weight is 90.

Homogenous weight enumerator: w(x)=1x^0+162x^90+54x^91+186x^92+538x^93+312x^94+270x^95+668x^96+264x^97+300x^98+660x^99+228x^100+252x^101+612x^102+330x^103+138x^104+464x^105+144x^106+186x^107+322x^108+78x^109+102x^110+144x^111+42x^112+24x^113+56x^114+6x^115+14x^117+2x^120+2x^126

The gray image is a linear code over GF(3) with n=150, k=8 and d=90.
This code was found by Heurico 1.16 in 0.462 seconds.