API don't work for some domains

Question

For some reasons, my website: [https://altusentertainment.com/](https://altusentertainment.com/) can't use this API.

Every time I use, it always returning 500 Internal server error?
Only page FAQ: [https://altusentertainment.com/faq/](https://altusentertainment.com/faq/) can use it. Can you please check it for me?

On Page SEO Audit

8.3 / 10

4,785ms

74%

N/A

API don't work for some domains