The generator matrix

 1  0  1  1  1  1  1 X+6  1  1 2X  1  1  1  1 X+6  1  1  1  0  1  1  1 2X  1  1  1  3  1  1  1 2X+3  1  1  1 X+6  1  1 X+3  1  1 X+3  1  1  1  1  1 X+6  1  1  1  1  1  1  0 2X  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  X  1  1  1  1  6  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  1 2X+7  8 X+6 X+1 X+5  1 2X 2X+8  1  7  0 X+5 2X+7  1 X+6 X+1  8  1 2X  7 2X+8  1 X+3 X+4 2X+2  1  4 2X+3 X+2  1 2X+7  0  8  1  3 2X+4  1  2  0  1  3 2X+7  8 2X+4  2  1 X+6 2X X+1  7 X+5 2X+8  1  1 X+6 2X X+1  7 X+3 2X+3 X+4  4  3 2X+1 X+3 X+4  3 2X+4 2X+3  1  1 X+3 X+4 2X+3  4  1  2 X+2 2X+6  4 X+2  6 2X+4 2X+2 X+2 2X+2 2X+5 2X+8  5
 0  0  6  0  6  3  3  0  0  0  3  6  6  3  3  3  6  3  3  0  0  6  0  3  6  3  0  0  6  0  3  3  6  0  0  3  0  6  0  0  6  3  6  3  3  3  3  0  0  6  6  3  0  3  3  0  0  6  6  3  0  6  6  3  3  0  3  0  3  0  3  0  6  3  0  3  0  6  6  6  3  0  6  3  0  6  0  6  6  3  6
 0  0  0  3  3  6  3  3  3  6  0  6  0  6  0  3  6  3  0  6  6  3  0  6  0  0  3  3  0  0  0  3  6  3  6  6  6  3  6  0  3  0  6  3  3  6  6  0  6  0  0  0  6  6  0  3  3  3  3  6  0  6  6  3  3  0  6  6  0  3  6  6  3  3  0  0  3  0  0  3  3  0  6  6  6  0  0  3  6  3  3

generates a code of length 91 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 177.

Homogenous weight enumerator: w(x)=1x^0+294x^177+888x^178+1296x^179+566x^180+984x^181+340x^183+306x^184+402x^186+660x^187+648x^188+86x^189+78x^190+2x^192+4x^195+2x^198+2x^204+2x^225

The gray image is a code over GF(3) with n=819, k=8 and d=531.
This code was found by Heurico 1.16 in 0.52 seconds.