RSS button throws java.sql.SQLException error

[Fua Moua]

Clicking on a RSS feed button for a main topic throws the below error.

java.sql.SQLException: ORA-00936: missing expression

Below is the detail error.
Caused by: net.jforum.exceptions.DatabaseException: java.sql.SQLException: ORA-00936: missing expression

at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:579)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1894)
at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteDescribe(TTC7Protocol.java:831)
at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java:2496)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2840)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:608)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:536)
at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeQuery(NewProxyPreparedStatement.java:76)
at net.jforum.dao.generic.GenericPostDAO.selectLatestByForumForRSS(GenericPostDAO.java:496)
at net.jforum.view.forum.RSSAction.forumTopics(RSSAction.java:88)
... 24 more
Caused by: java.sql.SQLException: ORA-00936: missing expression

... 36 more

URL is: /thermoforum/rss/forumTopics/207.page?null

I saw in post that it was missing the \ in the query and they suggested the below change.

PostModel.selectLatestByForumForRSS = SELECT * FROM ( \   
        SELECT p.topic_id, p.post_id, p.forum_id, pt.post_subject AS subject, pt.post_text, p.post_time, p.user_id, u.username,\   
        ROW_NUMBER() OVER(ORDER BY t.topic_id DESC) - 1 LINENUM \   
        FROM jforum_topics t, jforum_posts p, jforum_posts_text pt, jforum_users u \   
        WHERE p.post_id = t.topic_first_post_id \   
        AND p.topic_id = t.topic_id \   
        AND p.user_id = u.user_id \   
        AND p.post_id = pt.post_id \   
        AND p.need_moderate = 0 \   
        AND t.forum_id = ? \   
        ORDER BY t.topic_id DESC \   
    ) \   
    WHERE LINENUM <= ?   
       
PostModel.selectHotForRSS = SELECT * FROM ( \   
        SELECT t.topic_id, t.topic_title AS subject, p.post_id, t.forum_id, pt.post_text, p.post_time, p.user_id, u.username, \   
        ROW_NUMBER() OVER(ORDER BY topic_type DESC, topic_last_post_id DESC) - 1 LINENUM \   
        FROM jforum_topics t, jforum_posts p, jforum_posts_text pt, jforum_users u \   
        WHERE p.post_id = t.topic_last_post_id \   
        AND p.topic_id = t.topic_id \   
        AND p.user_id = u.user_id \   
        AND p.post_id = pt.post_id \   
        AND p.need_moderate = 0  \   
    ) \   
    WHERE LINENUM < ?  

Now I get a different error and I can't figure out why.

java.sql.SQLException: ORA-00903: invalid table name

Caused by: net.jforum.exceptions.DatabaseException: java.sql.SQLException: ORA-00903: invalid table name

at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:579)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1894)
at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteDescribe(TTC7Protocol.java:831)
at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java:2496)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2840)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:608)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:536)
at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeQuery(NewProxyPreparedStatement.java:76)
at net.jforum.dao.generic.GenericPostDAO.selectLatestByForumForRSS(GenericPostDAO.java:496)
at net.jforum.view.forum.RSSAction.forumTopics(RSSAction.java:88)
... 24 more
Caused by: java.sql.SQLException: ORA-00903: invalid table name

... 36 more

URL is: /thermoforum/rss/forumTopics/207.page?null