Intermittent JDBC error two-task conversion routine - oracle

Question

I am intermittently getting the following jdbc error with my oracle db (in remote linux machine)
java.sql.SQLException: ORA-03120: two-task conversion routine: integer overflow
The query that mostly breaks(not the only one!) looks like this, note that I am using Groovy Sql
String insertScript =
"""
INSERT INTO data_table (invoke_id , trans_type , trans_from ,
trans_to , serv_type ,msg_type , man_id , recip_id ,
trx_id , part_id , msg_orig_time , create_time ,
action_code , num_ranges , use_trx_id, due_date,owner,route,lsa,
cl_id,hl_id,requ_type,lnp_type,use_invoke_id)
VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
"""
def params = [invokeId,transType,transFrom,transTo,servType,msgType,man,recip,portId,owner,
now,now,"W",1,trxId,dueDate,owner," ", "LSA","CCH"," ","Basic","lspp",invokeId]
sql.execute insertScript, params
What I do not understand is why my queries work some time and not other times. Generally it will happen during the first run and only rarely appear in subsequent runs.
[UPDATE] I am getting this error sometimes on application startup also, when spring tries to load its context. I am using spring and dbcp for the connection pooling.
Caused by: org.apache.commons.dbcp.SQLNestedException: Error preloading the connection pool
at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1238)
at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:113)
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79)
... 46 more
Caused by: java.sql.SQLException: ORA-03120: two-task conversion routine: integer overflow
at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:70)
at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:131)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:204)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:455)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:406)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:399)
at oracle.jdbc.driver.T4CTTIoauthenticate.receiveOauth(T4CTTIoauthenticate.java:799)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:368)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:508)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:203)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:33)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:510)
at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:294)
at org.apache.commons.pool.impl.GenericObjectPool.addObject(GenericObjectPool.java:1059)
at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1235)
... 49 more