User has a simple SQL query in the Editor window and when trying to execute it they get the error message "interface not registered on client." This query works fine in other applications.
User might be clicking on the debugger icon instead of the execute icon.
Clicking on the "Run" icon or the lightning bolt runs a procedure in debugger. If trying to execute a SQL query click on the "Execute" icon or press F5 on the keyboard. It looks like a green triangle above a white sheet of paper.
