Error in Running in the Report

Can anyone help me determine the source of this error whenever I run a report? Thank you

If a query is successful, the result set should be open and the call to next should return true or false, depending on whether there query generated any data. You stack trace indicated the result set is not open.

Good morning

When you have opened the Report in the edit pane.
Are you able to run the report there and in the window see if there are any red errors at the bottom of the page that you can try share?

Have you tested each Query that you added, in the Query window to see if it is returning results there first?

Then also have you updated report Bindings or in the Edit of the Report, refreshed and saved the various queries added to the report?

Let me know

Regards