Twrp not showing files or folders

HELP ! when i go into file manager → data, it only shows the folders 'lost+found" and “media” wich are both empty. why don’t I have the system folder and all the other folders?? thanks

Try going into the Mount option in TWRP and make sure the system partition is mounted. Once it’s mounted you should be able to see and access the files in the file manager.