temporary fix:
go to https://build.envato.com/api/#market_0_Author_Sale
click Log in with your Envato account to test this API method
F12 ( developer console ) -> network -> XHR
optionally clear so you can see only the new requests
insert code & click try out
you should have 2 requests one with the method 204 OPTIONS and one GET 200
click 200 GET and check request headers
you should have a header like
Authorization:"Bearer sometoken"
Use this token to temporarily use the service. It’s temporary since we don’t know its TTL ( time to live ).
LE: the TTL is 1 hour 