Supporting ZSUN Wifi Card Reader (16MB Flash, 64MB RAM, AR9331)

puteulanus, the imagebuilder gives me an error.
Do I do something wrong?
Steps followed:
I got off "openwrt-imagebuilder-ar71xx-generic.Linux-x86:64.tar.xz" off the link that you put:"https://ci.appveyor.com/project/puteulanus/zsun-builder/build/artifacts".
After extracting it, in a terminal, I execute:
make PROFILE = zsun-sdreader, and I get this error:

....

Configuring ip6tables.
Configuring ppp-mod-pppoe.

Finalizing root filesystem...
/home/normal/Documentos/zsun/18-06/imagebuilder/staging_dir/host/bin/find: '/home/normal/Documentos/zsun/18-06/imagebuilder/staging_dir/target-mips_24kc_musl/root-ar71xx': No such file or directory
/home/normal/Documentos/zsun/18-06/imagebuilder/staging_dir/host/bin/find: '/home/normal/Documentos/zsun/18-06/imagebuilder/staging_dir/target-mips_24kc_musl/root-ar71xx': No such file or directory
Traceback (most recent call last):
  File "/home/normal/Documentos/zsun/18-06/imagebuilder/staging_dir/host/bin/mklibs", line 415, in <module>
    inode = os.stat(prog)[ST_INO]
OSError: [Errno 2] No such file or directory: 'mips-openwrt-linux-musl'
Makefile:156: recipe for target 'prepare_rootfs' failed
make[2]: *** [prepare_rootfs] Error 1
Makefile:108: recipe for target '_call_image' failed
make[1]: *** [_call_image] Error 2
Makefile:192: fallo en las instrucciones para el objetivo 'image'
make: *** [image] Error 2

What am I doing wrong?
I would appreciate your help.