Profiler Running

Although SQL Profiler is a powerful tool, running it does have a performance impact. This warning has been raised because the SQL Profiler is currently running.

Suggested Action

Track down the profiler session and close it, or kill the connection.

How To Kill a SQL Server Connection

KILL <session_id>

Further Reading

KILL (Transact-SQL) | Microsoft Docs

SQL Server Profiler | Microsoft Docs