Hey i need help with drawing $/$Doing $($ER diagram$)$and if u can i need also $($acrivity diagram$)$ the importent one is the Er Diagram

The homework about $($The app$/$website called $($pinterest$)$i need the example like this pic i must do this diagram with the info that included on it

something like this With explanation so I can understand

Note$*$i must draw$/$do the example so please help me

And sorry I keep reapeting This Q

cuz there was an expert who answerd me but i can't see the image it says $($image not found$)$ or some of them answer me but withouut the Er diagram pic thank you guys so much but i need the image