Error API_KEY_HTTP_REFERRER_BLOCKED at using Youtube Data API v3

I have a problem with API.

I try get metadata from MW Metadata from https://github.com/mattwright324/youtube-metadata and i have a error:

{"readyState": 4,"responseText": "{\n  \"error\": {\n    \"code\": 403,\n    \"message\": \"Requests from referer https://example.com are blocked.\",\n    \"errors\": [\n      {\n        \"message\": \"Requests from referer https://example.com are blocked.\",\n        \"domain\": \"global\",\n        \"reason\": \"forbidden\"\n      }\n    ],\n    \"status\": \"PERMISSION_DENIED\",\n    \"details\": [\n      {\n        \"@type\": \"type.googleapis.com/google.rpc.ErrorInfo\",\n        \"reason\": \"API_KEY_HTTP_REFERRER_BLOCKED\",\n        \"domain\": \"googleapis.com\",\n        \"metadata\": {\n          \"consumer\": \"projects/0000000000\",\n          \"service\": \"youtube.googleapis.com\"\n        }\n      }\n    ]\n  }\n}\n","responseJSON": {"error": {"code": 403,"message": "Requests from referer hhttps://example.com are blocked.","errors": [                {"message": "Requests from referer https://example.com are blocked.","domain": "global","reason": "forbidden"                }            ],"status": "PERMISSION_DENIED","details": [                {"@type": "type.googleapis.com/google.rpc.ErrorInfo","reason": "API_KEY_HTTP_REFERRER_BLOCKED","domain": "googleapis.com","metadata": {"consumer": "projects/639927084543","service": "youtube.googleapis.com"                    }                }            ]        }    },"status": 403,"statusText": "error"}

I tried to disable the API key restriction but that doesn't do anything either. The help from another thread doesn't work either.