ok, thanks, I will just hide the buttons in CSS. It seems the admins are not used to be able to do something in the frontend. The want to do everything in the backend and got confused that they have the buttons. so I will make it easier for them and hide them
Only loud thinking: Normally you give admin rights to as few people as possible. Because the backend is very powerful. There you can delete and destroy a lot! So it's would be better, to let there in only the most experienced people!