plusDomains.activities.insert response always 403 access forbidden

Question

I give all permission like read, write,login. But i get always response:

{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "forbidden",
    "message": "Forbidden"
   }
  ],
  "code": 403,
  "message": "Forbidden"
 }
}