Is anyone else currently unable to use the Matomo Connector for Looker Studio? I’m hitting two issues at once:
Existing report components that use a Matomo data source now show: “Unknown data source - The data source that this component belongs could not be loaded…This can happen if data sources have been deleted”
Nothing has been deleted on my side and the data source still exists and shows “working”
When I try to add the connector again (or reload the configuration), the configuration screen spins indefinitely and then shows: “There was an error fetching the configuration for this add-on” with a “Retry authorization”-button. Retrying doesn’t help, and it never finishes loading.
The second error happens before I even enter a URL or token and both issues reproduce across different Google accounts and browsers – including a fresh account that never used the connector before – so it doesn’t look like my setup. (For reference: self-hosted Matomo 5.11.2)
Is anyone else seeing this right now? And if you ran into it before, did you find a fix?
Same here - i think its a problem with the connector itself - data sources i used yesterday are all “unknown” - so dont do anything rash - they probably need to fix the connector.
Without any change on my side, the connector is working normally again – the configuration screen loads, the “Unknown data source” error is gone, and my dashboard is back to normal. Since nothing changed in my setup and it had failed across multiple Google accounts and browsers, it looks like it was a temporary issue on the connector/Matomo side that has now been fixed.
Posting this in case anyone else ran into the same thing – if your dashboard suddenly broke with these errors, it may just be worth waiting and retrying. Thanks!
Experiencing the exact same issues on our end — both of them.
Our setup: Matomo Cloud instance running 5.12.0-alpha.20260615015608. Auth token is valid (API.getMatomoVersion responds instantly with correct output), token has no expiration, and was last successfully used by the connector on June 8th.
Same behavior: existing Looker Studio dashboard (8 pages, ~50 components) now shows “Unknown data source” across all widgets. Attempting to reconnect or add the connector again results in an infinite loading spinner on the configuration screen. Reproduced in incognito mode and different browsers.
Since you’re on self-hosted 5.11.2 and we’re on Cloud 5.12.0-alpha with identical symptoms, this clearly rules out a Matomo version issue — something is broken on the connector/Google side.
Will update if we hear back from Matomo Cloud support.
I just tested it and it does sound more like a connector-side issue than anything specific to your setup, especially since it happens across multiple Google accounts and browsers before you even get to enter your Matomo URL or API token.
If the connector configuration fails immediately with the “There was an error fetching the configuration for this add-on” message, it’s usually an indication that the Looker Studio community connector or its authentication service is having problems. That would also explain why your existing data sources are suddenly showing as “Unknown data source.”
At this point, there’s probably not much you can fix locally. I’d recommend checking if other users are reporting the same issue and, if so, waiting for the connector maintainers to resolve it. In the meantime, if your reports are business-critical, you could consider using another integration method (such as exporting data or using the Reporting API) until the connector is working again.
Hopefully it’s just a temporary outage and gets resolved soon.