ok so you need Pgadmin on your machine, then go to your db the one you use for your strapi app, then found the table ‘up_permissions’, right click on it, go to View/Edit data → all rows then in the data output section you can add a row
you copy past : ‘plugin::mux-video-uploader.mux-asset.find’ you choose the id you want, one is not allready in use. Save data changes.
Now go to up_permissions_role_links, right click → query tool → in the query playground make your SQL query : INSERT INTO up_permissions_role_links (permission_id, role_id)
VALUES (*id you choose before *, 1) then execute your query.
Now you can find in your strapi dashboard, USER AND PERMISSIONS → ROLE → AUTH go down and you will have the plugin in your permissions.
I hope it help