Cannot generate API credentials

Cannot generate API credentials

Hello,

I am trying to register my first application within my zoho account to access the api of the crm, but I am having a hard time doing so. This is what I did:
  1. Visiting https://accounts.zoho.eu/developerconsole
  2. Logging in
  3. Clicking "Add Client ID"
  4. Filling in all requested information (Client-Name, Client-Domain, Callback URL, Type: WEB Based)
  5. Clicking on "Create" button
  6. I see an error message within the formular right above the "Create" button just saying "Error"
I used the following information:
Client-Name: Example Api
Client-Domain: Our domain where our api lives in
Callback-URL: End point of our api for the zohocrm callback

I checked the developer console of my chrome web browser and saw the response of the server: "POST https://accounts.zoho.eu/ui/dconsole/api-clients.jsp 400 (Bad Request)"

Does anybody else facing the same issue? What can I do to fix this?

PS: Please note: I am using the European version of the accounts URL (accounts.zoho.eu) because our account is hosted there. accounts.zoho.com would not work for us.