Grafana SQLServer table Panel not loading information (Peak Hours)

Have a query that executes fine and gives back the results. Table panel is used to show the results on Grafana and it works fine.

During the DB peak hours(when the load is high) the table panel show the little refresh icon on the top right part and no data is pulled from the Database. Haven’t found much useful information in the log statements. When the same query is run at the same time on SQLStudio results are shown within 2 seconds.

Any directions how to debug it further and see the actual cause of the issue ?