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error while inserting new message and new user

 
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I have 2.1.7 jforum
Mysql version : 5.0.18
Tomcat :5.5.23

When i try to insert new message or add a new user. I get error message:

Here are the details :

<!-- BEGIN ERROR STACK TRACE <br /> net.jforum.exceptions.ForumException: java.lang.reflect.InvocationTargetException <br /> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) <br /> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) <br /> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) <br /> at java.lang.reflect.Method.invoke(Method.java:585) <br /> at net.jforum.Command.process(Command.java:117) <br /> at net.jforum.JForum.processCommand(JForum.java:220) <br /> at net.jforum.JForum.service(JForum.java:203) <br /> at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) <br /> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) <br /> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) <br /> at net.jforum.util.legacy.clickstream.ClickstreamFilter.doFilter(ClickstreamFilter.java:59) <br /> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) <br /> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) <br /> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210) <br /> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174) <br /> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) <br /> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) <br /> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) <br /> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) <br /> at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:834) <br /> at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:640) <br /> at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1286) <br /> at java.lang.Thread.run(Thread.java:595) <br /> Caused by: java.lang.reflect.InvocationTargetException <br /> ... 23 more <br /> Caused by: net.jforum.exceptions.DatabaseException: java.sql.SQLException: SQL String can not be NULL <br /> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:910) <br /> at com.mysql.jdbc.PreparedStatement.init(PreparedStatement.java:438) <br /> at com.mysql.jdbc.Connection.clientPrepareStatement(Connection.java:2138) <br /> at com.mysql.jdbc.Connection.clientPrepareStatement(Connection.java:2068) <br /> at com.mysql.jdbc.Connection.prepareStatement(Connection.java:4611) <br /> at com.mysql.jdbc.Connection.prepareStatement(Connection.java:4516) <br /> at com.mchange.v2.c3p0.impl.NewProxyConnection.prepareStatement(NewProxyConnection.java:190) <br /> at net.jforum.dao.generic.AutoKeys.executeAutoKeysQuery(AutoKeys.java:137) <br /> at net.jforum.dao.generic.AutoKeys.executeAutoKeysQuery(AutoKeys.java:118) <br /> at net.jforum.dao.generic.GenericTopicDAO.addNew(GenericTopicDAO.java:303) <br /> at net.jforum.view.forum.PostAction.insertSave(PostAction.java:1074) <br /> ... 23 more <br /> Caused by: java.sql.SQLException: SQL String can not be NULL <br /> ... 34 more <br /> <br /> END ERROR STACK TRACE-->

Any advice ?

Thanks.
[originally posted on jforum.net by altuga]
 
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Problem is database. We solved it. Please adjust your database configuration carefully.

Thanks.
[originally posted on jforum.net by altuga]
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