CMDBuild Forum

Openmaint::On Activity Report error

When I try to open Activty Report I got this error
{“success”:false,“messages”:[{“level”:“ERROR”,“show_user”:true,“message”:“lookup not found for type =< AlfrescoCategory > and code =< Signature >”,"_message_translation":“lookup not found for type =< AlfrescoCategory > and code =< Signature >”},{“level”:“ERROR”,“show_user”:false,“message”:“org.cmdbuild.report.ReportException: error processing report = ReportDataExt{id=286763, code=ActivityReport}, caused by: org.cmdbuild.report.ReportException: error processing report = ReportDataExt{id=286763, code=ActivityReport}, caused by: net.sf.jasperreports.engine.JRException: Error executing SQL statement for: ActivityReport., caused by: org.postgresql.util.PSQLException: ERROR: CM: lookup not found for type =< AlfrescoCategory > and code =< Signature >\n Where: PL/pgSQL function _cm3_lookup(character varying,character varying) line 6 at RAISE\nPL/pgSQL function rep_activityreport(bigint,bigint) line 5 during statement block local variable initialization”,"_message_translation":“org.cmdbuild.report.ReportException: error processing report = ReportDataExt{id=286763, code=ActivityReport}, caused by: org.cmdbuild.report.ReportException: error processing report = ReportDataExt{id=286763, code=ActivityReport}, caused by: net.sf.jasperreports.engine.JRException: Error executing SQL statement for: ActivityReport., caused by: org.postgresql.util.PSQLException: ERROR: CM: lookup not found for type =< AlfrescoCategory > and code =< Signature >\n Where: PL/pgSQL function _cm3_lookup(character varying,character varying) line 6 at RAISE\nPL/pgSQL function rep_activityreport(bigint,bigint) line 5 during statement block local variable initialization”}]}
Anyone?