Elastic alerts get queued and never run thereafter

[Tesla_User]

Whenever I create and run an alert, the alert is getting queued but not running thereafter. Is there a way to clear the threadpool queue and make the alerts run faster.

Error:

{
  "_id" : "log_error_watch1_4730bca4-1913-4fc6-8afc-c391ebe46c6a-2022-05-31T14:42:14.42171262Z",
  "watch_record" : {
    "watch_id" : "log_error_watch1",
    "node" : "F9AnYfZnQvSmmS-yN9FUtQ",
    "state" : "not_executed_already_queued",
    "trigger_event" : {
      "type" : "manual",
      "triggered_time" : "2022-05-31T14:42:14.421Z",
      "manual" : {
        "schedule" : {
          "scheduled_time" : "2022-05-31T14:42:14.421Z"
        }
      }
    },
    "messages" : [
      "Watch is already queued in thread pool"
    ]
  }
}