Not authorised to use API key

Hi, when I resctrict API key to IP – 141.136.41.60

I get the error message below but when cancel restriction so any IP can access API then it works OK.

Any ideas please ??

“error_message”: “This IP, site or mobile application is not authorized to use this API key. Request received from IP address 2a02:4780:a::23, with referer: https://maps.googleapis.com/maps/api/place/details/json?placeid=ChIJ26pYHf3beEgR-SP61H4KTqQ&key=AIzaSyCvJTWoZqziERL9WpAB8PZKSY60dV4MNlQ&fields=id%2Cicon%2Cname%2Cformatted_address%2Cvicinity%2Crating%2Creview%2Curl%2Cuser_ratings_total&language=en”,
“html_attributions”: [],
“status”: “REQUEST_DENIED”

The page I need help with: [log in to see the link]