Loco Translate?

Hi I was wondering if someone could shed some light,

Currently have wordpress with a plugin called wpcargo which im trying to convert it to spanish.

These were the steps i took

1) installed the plugin

2) then go to the wpcargo plugin click on translate

3) create a template

4) click on the spanish part and click on sync

Which there it still was not working so i went into the root of the folder and found

the language files, but what i also did copy the file wpcargo-es_ES.po and copied to

/var/www/html/wordpress/wp-content/languages/plugins/

but not sure what else im missing?

the plugin shows thats its 100% translatable

https://imgur.com/sSEMW9x.png

root@logistica:~# ls -l -h /var/www/html/wordpress/wp-content/plugins/wpcargo/languages/
total 836K
-rwxr-xr-x 1 www-data www-data 30K Jun 29 22:08 wpcargo-ar.mo
-rwxr-xr-x 1 www-data www-data 52K Jun 29 22:08 wpcargo-ar.po
-rwxr-xr-x 1 www-data www-data 27K Jun 29 22:08 wpcargo-es_ES.mo
-rwxr-xr-x 1 www-data www-data 49K Jun 29 22:08 wpcargo-es_ES.po
-rwxr-xr-x 1 www-data www-data 27K Jun 29 22:08 wpcargo-fr_CA.mo
-rwxr-xr-x 1 www-data www-data 49K Jun 29 22:08 wpcargo-fr_CA.po
-rwxr-xr-x 1 www-data www-data 27K Jun 29 22:08 wpcargo-fr_FR.mo
-rwxr-xr-x 1 www-data www-data 49K Jun 29 22:08 wpcargo-fr_FR.po
-rwxr-xr-x 1 www-data www-data 28K Jun 29 22:08 wpcargo-he_IL.mo
-rwxr-xr-x 1 www-data www-data 50K Jun 29 22:08 wpcargo-he_IL.po
-rwxr-xr-x 1 www-data www-data 26K Jun 29 22:08 wpcargo-it_IT.mo
-rwxr-xr-x 1 www-data www-data 48K Jun 29 22:08 wpcargo-it_IT.po
-rwxr-xr-x 1 www-data www-data 26K Jun 29 22:08 wpcargo-nl_BE.mo
-rwxr-xr-x 1 www-data www-data 48K Jun 29 22:08 wpcargo-nl_BE.po
-rw-r--r-- 1 www-data www-data 39K Jul  5 23:17 wpcargo.pot
-rwxr-xr-x 1 www-data www-data 26K Jun 29 22:08 wpcargo-ro_RO.mo
-rwxr-xr-x 1 www-data www-data 48K Jun 29 22:08 wpcargo-ro_RO.po
-rwxr-xr-x 1 www-data www-data 33K Jun 29 22:08 wpcargo-ru_RU.mo
-rwxr-xr-x 1 www-data www-data 55K Jun 29 22:08 wpcargo-ru_RU.po
-rwxr-xr-x 1 www-data www-data 24K Jun 29 22:08 wpcargo-zh_CN.mo
-rwxr-xr-x 1 www-data www-data 46K Jun 29 22:08 wpcargo-zh_CN.po