all my data disappeared

Hi oren ,

As checked your provided screenshot, it seems that there are some errors on one or more fields. Please try to click "See details" in the below screenshot, and share the error message with us. 

In addition, you can take some steps to make troubleshooting and find the solution.

• Check the Data Source Data: Is there any change(add or remove field) in data source?
• Check for Data Privacy Levels: In Power BI, different privacy levels control the sharing of data. So, make sure that the data privacy levels in Power BI match the privacy levels of the data source.
• Look for Data Transformation Issues: Ensure that every data transformation has been applied correctly and that the data has been loaded into the correct tables.

Best Regards