I’m creating a new plugin actually, the plugin is working perfectly, but it’s not available yet in the wordpress.org website, I have an issue with the translation, I will not use wordpress.org for the translation, it’s a local translation, so I generated the PO and MO files using POedit, and I followed all the steps here : https://developer.wordpress.org/plugins/internationalization/how-to-internationalize-your-plugin/ from :