Data refresh in Power BI online

Hi All,

Instantly I've got a problem as following:

Unable to determine the data source. When custom connectors are used, the error can happen if gateway doesn't have the extension enabled. Details: Static analysis failed in gateway. gatewayObjectId:e8ec3ab4-93d2-471d-9f66-107a69c47315, resultCode:FailedWithUnknownOrUnsupportedDataSources Query contains unsupported function. Function name: MariaDB.Contents .

• Data source for Query1

I have a gateway working, and a data source configured.

What else should I do??

Thanks for the help in advance.

Sylwia