Bad Request error from Yahoo when adding instrument

Hi. Trying to add a newly bought stock. But when searching for it in the “Add new investment instrument” dashboard i keep getting a yahoo error and it cant find the stock or any other stocks.
The error im getting is this:
Yahoo Finance: → 400 Bad Request
Any solution for this?

There was some discussion in German about this issue:

We’re not sure yet whether it is a temporary glitch on Yahoo’s side, or whether they have permanently changed the URL.

You can always add a security by hand.

Thank you for the answer. Will add it manually.