CORS error accessing POAP API

Hello,

We are using POAP API for some time, and around last week we starting to get CORS errors:
Access to XMLHttpRequest at 'https://api.poap.xyz/actions/...' from origin ... has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

Tried to switch to api.poap.tech, didn't help.

Can't find anything in your documentation / help. Could you give a suggestion where to look for a solution?