It you’re seeing similar screens to below, when refreshing data in Power BI Desktop?

 

 

 

 

Try the following steps…

Home Tab > Transform Data (image below).

 

In the new Window that opens:

 

Refresh Preview > Refresh All (image below).

 

 

 

 

One the refresh has completed, Close & Apply (image below).

 

 

Once the window has closed, test it works by Refreshing as shown in the image below.