TOON Callback URL not working

Hi,

My TOON integration is not working anymore; the Callback URL’s are not accepted and/or is giving not the right answer.

I use Duckdns, and my current Callback URL in mij Development Portal at Toon is:

https://192.***.***.***:8123/auth/external/callback,https://***.duckdns.org:8123/auth/external/callback```

Anyone who might help me out can have the exact Callback URL's for testing off course.