Postgresql12 database connection pool issue

I have created PostgreSQL 12 database cluster in digital ocean, and using connection pool. in my java code Application.properties i have configured database properties as below:

> `spring.datasource.url=jdbc:postgresql://private-db-postgresql--.b.db.ondigitalocean.com:25061/*********DBName
>
> spring.datasource.username=*********
>
> spring.datasource.password=*********
>
> spring.datasource.driver-class-name=org.postgresql.Driver
>
> spring.jpa.properties.hibernate.default_schema=*********`
>

when i am trying to run the application getting below error:

> Caused by: org.postgresql.util.PSQLException: ERROR: prepared statement "S_3" already exists
> at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2553) ~[postgresql-42.2.16.jar:42.2.16]
> at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2285) ~[postgresql-42.2.16.jar:42.2.16]
> at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:323) ~[postgresql-42.2.16.jar:42.2.16]
> at org.postgresql.jdbc.PgConnection.executeTransactionCommand(PgConnection.java:857) ~[postgresql-42.2.16.jar:42.2.16]
> at org.postgresql.jdbc.PgConnection.rollback(PgConnection.java:900) ~[postgresql-42.2.16.jar:42.2.16]
> at com.zaxxer.hikari.pool.ProxyConnection.rollback(ProxyConnection.java:396) ~[HikariCP-3.4.5.jar:na]
> at com.zaxxer.hikari.pool.HikariProxyConnection.rollback(HikariProxyConnection.java) ~[HikariCP-3.4.5.jar:na]
> at org.hibernate.resource.jdbc.internal.AbstractLogicalConnectionImplementor.rollback(AbstractLogicalConnectionImplementor.java:121) ~[hibernate-core-5.4.21.Final.jar:5.4.21.Final]
> ... 27 common frames omitted
> Caused by: org.postgresql.util.PSQLException: ERROR: prepared statement "S_1" does not exist
> at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2553) ~[postgresql-42.2.16.jar:42.2.16]
> at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2285) ~[postgresql-42.2.16.jar:42.2.16]
> at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:323) ~[postgresql-42.2.16.jar:42.2.16]
> at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:473) ~[postgresql-42.2.16.jar:42.2.16]
> at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:393) ~[postgresql-42.2.16.jar:42.2.16]
> at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:164) ~[postgresql-42.2.16.jar:42.2.16]
> at org.postgresql.jdbc.PgPreparedStatement.executeQuery(PgPreparedStatement.java:114) ~[postgresql-42.2.16.jar:42.2.16]
> at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52) ~[HikariCP-3.4.5.jar:na]
>
>