I am the plugin author for Echo Knowledge Base. I added translations for all strings Stable (latest release) and Stable Readme (latest release).
Plugin Name: Echo Knowledge Base
Plugin URL: https://translate.wordpress.org/locale/fr/default/wp-plugins/echo-knowledge-base/
I’m kindly asking to review them and accept or approve me as PTE. Thank you!
— fr_FR
— fr_CA
— es_ES