Getting this error while calling a hardcoded insert query in myBatis

Question

10:59:35,454 ERROR [stderr] (pool-6-thread-1) org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 

10:59:35,478 ERROR [stderr] (pool-6-thread-1) ### Error updating database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (IO Error: The Network Adapter could not establish the connection)

10:59:35,530 ERROR [stderr] (pool-6-thread-1) ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (IO Error: The Network Adapter could not establish the connection)

10:59:35,594 ERROR [stderr] (pool-6-thread-1)   at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:75)

10:59:35,633 ERROR [stderr] (pool-6-thread-1)   at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:371)

10:59:35,672 ERROR [stderr] (pool-6-thread-1)   at com.sun.proxy.$Proxy24.insert(Unknown Source)

10:59:35,701 ERROR [stderr] (pool-6-thread-1)   at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:240)

10:59:35,731 ERROR [stderr] (pool-6-thread-1)   at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:51)

10:59:35,769 ERROR [stderr] (pool-6-thread-1)   at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52)

10:59:35,805 ERROR [stderr] (pool-6-thread-1)   at com.sun.proxy.$Proxy92.insert(Unknown Source)

10:59:35,834 ERROR [stderr] (pool-6-thread-1)   at com.test.tools.businesslogic.BSL_VariablePathRefresh.insert(BSL_VariablePathRefresh.java:1413)

10:59:35,868 ERROR [stderr] (pool-6-thread-1)   at com.test.tools.domain.DMO_VariablePath.createVariablePathByPathWithContainers(DMO_VariablePath.java:395)

10:59:35,901 ERROR [stderr] (pool-6-thread-1)   at com.test.tools.businesslogic.BSL_VariablePathRefreshThread.createNewVarialePath(BSL_VariablePathRefreshThread.java:227)

10:59:35,934 ERROR [stderr] (pool-6-thread-1)   at com.test.tools.businesslogic.BSL_VariablePathRefreshThread.call(BSL_VariablePathRefreshThread.java:216)

10:59:35,959 ERROR [stderr] (pool-6-thread-1)   at com.test.tools.businesslogic.BSL_VariablePathRefreshThread.call(BSL_VariablePathRefreshThread.java:1)

10:59:35,990 ERROR [stderr] (pool-6-thread-1)   at java.util.concurrent.FutureTask.run(FutureTask.java:266)

10:59:36,013 ERROR [stderr] (pool-6-thread-1)   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

10:59:36,044 ERROR [stderr] (pool-6-thread-1)   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

10:59:36,075 ERROR [stderr] (pool-6-thread-1)   at java.lang.Thread.run(Thread.java:750)

I am getting the above error while doing a hardcoded insert query, there are multiple queries inside the same XML file most of them are select statements that are being run correctly and I am getting the desired output.

insert statement.

insert into variable_path(id, req_no, NAME, DESC, OBJECT_TYPE) values(455, 123, 'qw2', 'wew1', 5)

DMO_VariablePath.java

BSL_VariablePathRefresh bsl = utlBeanFactory.getBean(BSL_VariablePathRefresh.class);
try {
        bsl.insert();
}catch (Exception e) {
        e.printStackTrace();
}

BSL_VariablePathRefresh.java

public void insert() {
    try {
        this.daoVariablePath.insert();      
    }catch (Exception e) {
        logger.info(e);
        e.printStackTrace();
    }
}

interface DAO_VariablePath.java

void insert();

XML DAO_VariablePath.xml

<insert id="insert">
        insert into variable_path(id, req_no, NAME, DESC, OBJECT_TYPE) values(455, 123, 'qw2', 'wew1', 5)
</insert>

DMO_VariablePath.java is called using ExecutorService, so could it be the reason why I am facing the error?