The generator matrix

 1  0  0  1  1  1  6  1  1  0  1  4  1  4  1  1  1  4  1  1  1
 0  1  0  1  0  1  1  2  5  1  0  1  7  0  2  2  5  1  3  7  2
 0  0  1  1  1  0  1  3  3  2  0  1  2  1  3  4  4  4  0  7  0
 0  0  0  2  0  0  0  0  2  0  4  2  2  4  6  6  0  2  2  6  2
 0  0  0  0  2  0  0  0  0  2  2  4  4  2  2  6  2  0  2  2  4
 0  0  0  0  0  2  6  6  2  4  6  6  6  0  2  6  6  6  6  6  4

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

Homogenous weight enumerator: w(x)=1x^0+61x^14+242x^15+537x^16+1260x^17+2250x^18+3694x^19+5358x^20+5908x^21+5308x^22+3874x^23+2292x^24+1188x^25+502x^26+186x^27+66x^28+28x^29+7x^30+4x^31+2x^32

The gray image is a code over GF(2) with n=84, k=15 and d=28.
This code was found by Heurico 1.16 in 6.4 seconds.