The generator matrix

 1  1  1  1  1  1  2  1  0  1  2  1  1  0  1  1  1  2  1  1  2  1  2
 0  2  0  6  0  6  2  0  2  6  2  0  6  2  0  6  0  4  0  0  6  0  0
 0  0  4  0  0  0  0  0  0  0  0  0  0  0  0  0  0  4  4  4  0  4  4
 0  0  0  4  0  0  0  0  0  0  0  0  0  0  0  0  4  0  4  4  4  4  0
 0  0  0  0  4  0  0  0  0  0  0  0  0  0  4  4  4  0  0  4  4  0  4
 0  0  0  0  0  4  0  0  0  0  0  0  0  4  4  4  0  4  0  0  4  0  4
 0  0  0  0  0  0  4  0  0  0  0  0  0  4  0  4  4  0  4  4  0  0  0
 0  0  0  0  0  0  0  4  0  0  0  0  4  0  0  4  4  4  4  0  0  4  0
 0  0  0  0  0  0  0  0  4  0  0  0  4  0  4  0  4  4  0  0  4  4  4
 0  0  0  0  0  0  0  0  0  4  0  0  4  4  4  4  4  4  0  4  0  4  0
 0  0  0  0  0  0  0  0  0  0  4  0  0  4  4  0  4  4  4  0  0  0  4
 0  0  0  0  0  0  0  0  0  0  0  4  4  0  4  4  0  0  4  4  0  0  0

generates a code of length 23 over Z8 who´s minimum homogenous weight is 12.

Homogenous weight enumerator: w(x)=1x^0+66x^12+14x^13+180x^14+86x^15+248x^16+338x^17+536x^18+938x^19+2250x^20+3756x^21+4924x^22+6140x^23+4878x^24+3716x^25+2224x^26+948x^27+614x^28+358x^29+268x^30+78x^31+119x^32+10x^33+56x^34+2x^35+14x^36+4x^38+2x^40

The gray image is a code over GF(2) with n=92, k=15 and d=24.
This code was found by Heurico 1.16 in 4.3 seconds.