API Authentication error

I would like to make an app to manage our Wix contacts using the HTTP API.
We’ve just created a test app, added this as a dashboard component, but when calling the v1/contacts query, we get an 403-error 'Insufficient permissions [missing ContactsReadPersonal]’.
What’s the reason? And how to fix it?

The response from Wix-server:

HTTP/1.1 403 Forbidden Date: Tue, 01 May 2018 16:01:45 GMT Content-Type: application/json;charset=utf-8 Content-Length: 122 Connection: keep-alive X-Wix-Server-Artifact-Id: app-integration-bus-web Set-Cookie: XSRF-TOKEN=1525190505|YmSqV6fctBk7;Path=/;Domain= wix.com Expires: Thu, 01 Jan 1970 00:00:00 GMT X-Seen-By: m0j2EEknGIVUW/liY8BLLnZvRiAxsb2QX3OIshC+/eI=,1wy2ILu/S4rlWT/R4rqCrX7UkXvhOD1tOfat/D65E5c= Server: Pepyaka/1.13.10 X-Wix-Request-Id: 1525190505.169318737056126677 {“errorCode”:403,“message”:“Unauthorized. Insufficient permissions [missing ContactsReadPersonal].”,“wixErrorCode”:-23030}

Hi, I also got this error. Is there any work around with this problem?