@zakariaou Thank you for using this plugin.
All translation work are by volunteers and you can see the progress in here:
https://translate.www.ads-software.com/projects/wp-plugins/corona-virus-data/
When a translation is 100%, WordPress language editor have to approved that language, then you can receive the language update.
I’ll do the best I can do to push this progress but still needs some time to get it done.
Thank you for understanding.