I get a 403: Forbidden Error when I use the demo moon phase with my credentials

[ksimes]

When I test my credentials (App Id: 74773493-ca3f-4fb9-b638-b404656b2464) I get a error:

403 Forbidden
Code: AccessDenied
Message: Access Denied
RequestId: 8Y3Y1AYS6S5FC2D2
HostId: A+bm2BIVv6API5W810u55JvAIQ98JK2uWd1TY4lxOTBTpeFGI7WoKOg80ckXcRjaWshqKgk53Dc=

When I try to get a moon-phase with the default parameters.
If I try to get a star chart, I get:

403 Forbidden
Code: AccessDenied
Message: Access Denied
RequestId: J41R492DVSK3G1TG
HostId: h0YT8hDwXDFt2C6XdD8qDx0tsT0xbi56qvVrWvXC4ssTxtN3C3XGGw13+bxFkJUFVZC6mFcwkPQ=

If I use the GET requests, everything works fine and I get data as expected

Please advise.