I’m getting an error message when trying to connect Piwik and Looker Studio. I’ve correctly entered the APIs and the paths. I don’t understand.
Hi! Please make sure that you follow this guide: Data Studio (Looker Studio) integration | Piwik PRO help center.
Especially when it comes to the “path” field - you have to enter the account name (for example.piwik.pro → example). In “username” → your client ID, and in “password” → your client secret.
Let me know if it works 
The first time, I made a mistake. I tried to change it by doing exactly that, but it doesn’t work.
I am having the same issue. I get an error saying:
Community Connector Error
There was an error caused by the community connector. Please report the issue to the provider of this community connector if this issue persists.
Connector details
Error obtaining access token: Error: Access not granted or expired. Details: Error: Error retrieving token: 405: {“detail”:“Method \“GET\” not allowed.”}