I’m sorry but why do you thing somebody should help you when you start the post with such ignorance?
Please use the search - lot of issues have been discussed already!
I would recommend you ask TrueNAS support regarding truenas specific issues like which commands to use when. or least looks around in this forum which quickly shows this post How to remove apps from nextcloud inside TrueNAS Scale - #10 by new_user_123 and referencing this blog