Error on verifying api key

Hi! I installed the CleanTalk plugin, created an account on CleanTalk and pasted the api key in the settings. I get these errors:

2022-02-07 15:36:01: Error occurred while checking account status. Error: CONNECTION_ERROR : “cURL error 28: Failed to connect to api.cleantalk.org port 443: Connection timed out”
2022-02-07 15:36:01: Error occurred while API key validating. Error: Testing is failed. Please check the Access key.

I tried posting a comment with the blacklisted email and it’s ok, but in the admin I have no buttons for removing spam from existing comments for example and all the icons under “Protection is active” are red X’s.