Pipeline aborted due to error help me

Elastic Stack Logstash
9

i found the solution ( add the ruby filter to see if it's empty field it will remove it else if it's full it will keep it )
input{
file{
path => "/home/user/data/test-536-Copie.csv"
start_position => "beginning"
sincedb_path => "/dev/null"
}
}
filter{
csv{
separator => ","
columns => ["Service Fee Period Warning Played Flag",........,"Community Id 3"]

	}
	ruby {
            code => "
                    hash = event.to_hash
                    hash.each do |k,v|
                            if v == nil
                                    event.remove(k)
                            end
                    end
            "
    }
	mutate {
		convert => {
		"Supervision Period Warning Played Flag" => "integer"
                     ..........
		"Community Id 3" => "integer"
		}
	}
	mutate {
		add_field => {"D"=> ["2020-01-01"]}
	}
	date {	
		match => [ "Supervision Period Expiry Date", "YYYY-MM-dd" ]
		target => "Supervision Period Expiry Date"
	}
	
	
}

output{
elasticsearch{
hosts => "localhost"
index => "sub122"
document_type => "subscriber"
}
stdout{codec => rubydebug }
}