MySQLに接続するように設定したPlay frameworkのアプリケーションで [error] c.j.b.ConnectionHandle - Database access problem. Killing off all remaining connections in the connection pool. SQL State = 08S01 [error] application - ! @6ai2nh1a8 - Internal server error, for request [GET /salons?page=2] -> play.core.ActionInvoker$$anonfun$receive$1$$anon$1: Execution exception [[SQLException: Timed out waiting for a free availab