Exception in connector database

{
"status": "ERROR",
"message": "argument \"content\" is null",
"exception": "IllegalArgumentException",
"timeStamp": "2023-09-07T12:50:39.675+0200"
}

hi, i ran the query which is in the below code but it doesn't run because it gives this exception. Am I doing something wrong?

import com.oracle.e1.common.OrchestrationAttributes;
HashMap<String, Object> main(OrchestrationAttributes orchAttr, Sql sqlInst, HashMap inputMap)
{
HashMap<String, Object> returnMap = new HashMap<String...

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