Hey guys, thanks for trying to help me. 
I’m not sure, for how long this problem has already existed in my page (‘taschenwissen.com’) , but I noticed it just now: when I’m visiting one of my pages (specifically the ones located in Home>FINDEN) and then visit another one in the same “directory” (FINDEN) and try to share it via Browser (mobile Version, Google Chrome), it shares the previous, not the current page . Even though the address in the search bar is the correct one. At first I thought it might have something to do with dynamic pages I’ve just been experimenting with. My idea was, that the “currentItem” has not been refreshed yet, since thats where the SEO-settings get there information for sharing from. But not only was the rest of the page totally fine and updated, but the same problem also appeared on every other non-dynamic page of the directory (only two of them are dynamic pages - for testing).
By the way: It doesn’t change, when I’m staying on the page for a while, before sharing. Reloading fixed the problem ea time. But anyone who doesn’t know that, would keep sharing wrong pages 
For recreating the problem visit (on your phone) https://www.taschenwissen.com/artikel/was-war-die-maafa (try to share that one, which should work just fine), then press the home button in the upper left, click " FINDEN " and then try sharing again. When I’m doing this, it still wants to share ’ https://www.taschenwissen.com/artikel/was-war-die-maafa '. (This is one of the dynamic pages btw)
I would be very grateful for any ideas!
Cheers Noah