The generator matrix

 1  0  0  1  1  1  6  1  1  1  4  2  1  2  4  6  1  1  4  2  0
 0  1  0  1  6  3  1  0  0  3  1  1  7  2  2  0  2  2  2  1  1
 0  0  1  1  3  6  3  6  3  3  2  1  2  1  1  1  2  1  1  2  0
 0  0  0  4  0  0  0  0  0  4  4  4  0  4  0  4  4  0  0  0  0
 0  0  0  0  4  0  0  0  4  0  4  4  0  4  4  0  0  0  4  4  4
 0  0  0  0  0  4  0  0  0  0  4  4  4  4  0  4  4  4  4  4  0
 0  0  0  0  0  0  4  0  0  0  0  4  0  0  4  4  4  0  4  4  0
 0  0  0  0  0  0  0  4  4  4  4  0  4  4  0  0  4  4  4  0  4

generates a code of length 21 over Z8 who´s minimum homogenous weight is 14.

Homogenous weight enumerator: w(x)=1x^0+48x^14+40x^15+369x^16+400x^17+1548x^18+1496x^19+3149x^20+2272x^21+3172x^22+1496x^23+1550x^24+400x^25+340x^26+40x^27+50x^28+12x^30+1x^36

The gray image is a code over GF(2) with n=84, k=14 and d=28.
This code was found by Heurico 1.16 in 1.42 seconds.