RSS error

When I click on the site updates RSS feed, I get this error:

Error Information:
column name [author] already exist
More Information:
column name [author] already exist at railo.runtime.type.QueryImpl.addColumn(QueryImpl.java:1402):1402 at railo.runtime.type.QueryImpl.addColumn(QueryImpl.java:1390):1390 at railo.runtime.type.QueryImpl.addColumn(QueryImpl.java:1378):1378 at railo.runtime.functions.query.QueryAddColumn.call(QueryAddColumn.java:21):21 at modules.contentbox.model.rss.rssservice_cfc$cf.udfCall(/var/wwwroot/test_codersrevolution_com/modules/contentbox/model/rss/RSSService.cfc:106):106 at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:214):214 at railo.runtime.type.UDFImpl._call(UDFImpl.java:418):418 at railo.runtime.type.UDFImpl.callWithNamedValues(UDFImpl.java:376):376 at railo.runtime.util.VariableUtilImpl.callFunctionWithNamedValues(VariableUtilImpl.java:774):774 at railo.runtime.PageContextImpl.getFunctionWithNamedValues(PageContextImpl.java:1459):1459 at modules.contentbox.model.rss.rssservice_cfc$cf.udfCall(/var/wwwroot/test_codersrevolution_com/modules/contentbox/model/rss/RSSService.cfc:72):72 at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:214):214 at railo.runtime.type.UDFImpl._call(UDFImpl.java:418):418 at railo.runtime.type.UDFImpl.callWithNamedValues(UDFImpl.java:376):376 at railo.runtime.ComponentImpl._call(ComponentImpl.java:610):610 at railo.runtime.ComponentImpl._call(ComponentImpl.java:496):496 at railo.runtime.ComponentImpl.callWithNamedValues(ComponentImpl.java:1813):1813 at

Also, the comments RSS feed gives me parsing errors in both IE and FireFox:

IE: Invalid xml declaration. Line: 2 Character: 3

FF: XML Parsing Error: XML or text declaration not at start of entity Location: http://test.codersrevolution.com/index.cfm/blog/rss/comments Line Number 2, Column 1: