error when importing from fonts.com

I got this error when I try to import fonts from fonts.com api :

Error message
There was an error retrieving Font filters from Fonts.com. Error: cURL error 6: Could not resolve host: api.fonts.com (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://api.fonts.com/rest/json/AllFilterValues/
There was an error retrieving total Font count from Fonts.com. Error: cURL error 6: Could not resolve host: api.fonts.com (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://api.fonts.com/rest/json/AllFonts/?wfspstart=0&wfsplimit=1&wfsfre...