Hallo zusammen,
i have installed version 1.17.3 on my Cloudpanel-Server. Everything worked fine too, except for showing the question mark boxes during installation, they were just white....
now when I want to delete the default ticket this strange window is displayed.

(even without the German language package or other plugins) Also when I want to change the email settings. This error is also displayed in the Chrome Console

Thanks for Help
Bye