Splunk sendmodalert - Error

[sreelakshmi]

Below error is coming in Splunk machine continuously What is the the cause and find the solution ERROR

sendmodalert - Error in 'sendalert' command: Alert script returned error code 3. ERROR SearchScheduler - Error in 'sendalert' command: Alert script returned error code 3., search='sendalert webhook results_file="/mnt/opt/splunk/var/run/splunk/dispatch/rt_scheduler__admin__sap__RMD585fd0ca39fe4b642_at_1686095400_4037.3/per_result_alert/tmp_2.csv.gz" 

[sreelakshmi]

sreelakshmi_0-1686637484191.png

This is the error showing. Can anybody suggest the cause or solution