NC 15.0.0
Firefox 64.0
The hyperlink is:
https://some.url/index.php/apps/contacts#/contact/{contact id}
Correct hyperlink:
https://some.url/apps/contacts#/contact/{contact id}
Thanks for the report @R0maNNN. What do you mean by "top toolbar"?
@weeman1337
Top toolbar:

Broken link:

@R0maNNN thanks for the info. Now it's clear :)
I think the link is correct. This way it also works if the URL rewriting to index.php isn't there. The solution should be that the contacts app also works with the other URL.
@weeman1337 the fix is not released yet
https://github.com/nextcloud/contacts/pull/899 in
https://github.com/nextcloud/contacts/milestone/12
but I want to notice that "i" icon after the contact name is not show now. Is it by design?

NC 15.0.5
Contacts 3.0.3
@weeman1337 well, it was released, the redirection bug was fixed. But the question above is still relevant - why did the “I” icon disappear?
Is anyone alive here?
On 16.0.0 (release) the icon came back and all works fine.