I can not delet an alert from Mamage Alert portlet. This is error I get. Any one has advise? Thanks!

Exception com.bowstreet.util.WrappedException: Error in method deleteAlertDef. null [Root exception is java.sql.SQLException: [IBM][SQLServer JDBC Driver][SQLServer]Line 1: Incorrect syntax near ','.]


Stack Trace
java.sql.SQLException: [IBM][SQLServer JDBC Driver][SQLServer]Line 1: Incorrect syntax near ','.
at com.ibm.websphere.jdbc.base.BaseExceptions.createE xception(Unknown Source)