Datahub visualisation error after publishing

[agd50]

First the error message looks like above, when you click see details the below pops up.

I get this error for one visual (the only thing connected to the datahub data), what's going on/solution here?

[djurecicK2]

Hi @agd50 ,

 You need to add or change credentials for the published dataset. Go to the dataset and click "Settings" then go to "Data source credentials"

[agd50]

Where can I find more information about this?