The generator matrix

 1  0  1  1  1  1  1  1  1  0  1  1  1  1  2
 0  1  1  a 3a^2+2  0 2a^2+3  a 3a^2+2  1  2 2a^2+3 a+2 3a^2+2a+2  1
 0  0 2a^2+2 2a  2 2a^2 2a+2 2a^2+2a+2 2a^2+2a 2a 2a^2+2  2 2a+2 2a 2a^2+2a+2

generates a code of length 15 over GR(64,4) who´s minimum homogenous weight is 92.

Homogenous weight enumerator: w(x)=1x^0+840x^92+189x^96+5040x^100+168x^104+14336x^105+12040x^108+42x^112+112x^120

The gray image is a code over GF(8) with n=120, k=5 and d=92.
This code was found by Heurico 1.16 in 0.0539 seconds.