JDBC Probe to insert/update records into sql database table from ServiceNow

Hi,

I was trying to insert/update the record via JDBC probe into SQL database table from ServiceNow. Below script was working as expected 

var mid = new GlideRecord("ecc_agent");

mid.addQuery('name','MID_Serverxxx');

mid.query();

if(mid.next()){

}

var data = new GlideRecord("sys_data_source");

data.addQuery('name','xxname of datasourcexx');

data.query();

if(data.next()){

}

var r1 = new JDBCProbe(mid.name);

r1.setDataSource(ds.sys_id);

jr1.setFunction("INSERT");

r1.setTable("xxdatabase tablexx");

r1.addParameter("skip_sensor","true");

r1.addField("Number", "INC7845129");

r1.addField("Contact", "david");

r1.create();

 But when I updated to below script to insert the records from target table "Incident", tickets assigned to Service desk group. It throws me an error

r1.addField("Number", current.number);

r1.addField("Contact", current.caller);

r1.addField("opened",current.opened_at);

r1.create();

Thanks