My shared Dropbox-link suddenly stopped working. Is it possible to restore a link without deleting the original link and creating a new one? Or is there any way i could get the original link to work again, what should i do?
To my knowledge, there is no way to get the same shared link (I assume you got this from right clicking a file within dropbox, and then selecting copy link) once the link ID has changed within dropbox.
Usually, the link ID stays the same for same-named items, even after you've saved over them several times in the same folder (so, you could replace a file called image.png with a completely different image.png, and the link will simply display the other file instead).
I couldn't tell you what changes the link ID, but once it stops working - the only thing you can do is to re-create it with the same method, and send it out again.
I might be wrong, but since there's no way to choose a custom link ID, I don't see how you'd get the original link to start working. Sorry