Bad Request - Running real time queries for multiple tables in the same dashboard

Hello, I’m pretty sure there is a better wording for this but I could not seem to have found what I was looking for. I am trying to build a dashboard with multiple graphs uploading in realtime. When I query from more than one table this does not work, graphs show up intermittently with a red triangle showing an error (ERROR CODE 400) on the graph that Is not working. I am frankly quite inexperienced with Grafana so I was looking for some advice, maybe what I am trying to achieve is impossible altogether

Thank you