HelpDesk error when creating ticket from webservice

When trying to create a ticket through the webservice, we can getting the following errors in the Altiris log viewer:

Process: w3wp.exe (1956)
Thread ID: 5432
Module: AltirisNativeHelper.dll
Source: Altiris.AlertManager.SqlHelper
Description: Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.
sp_getworkitemrules

Process: w3wp.exe (1956)
Thread ID: 5432
Module: AltirisNativeHelper.dll
Source: Altiris.Helpdesk.Web.WebService.UpdateWorkitem
Description: Incident: new An unexpected error has occurred. Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.    at Altiris.Helpdesk.Services.BaseRuleService.RetrieveList(BaseRuleListDataSet ds, Boolean all, Boolean unpackValueText)
   at Altiris.Helpdesk.Services.NotifyRuleListDataSet.Fetch(Boolean all, Boolean decomposeValueText)
   at Altiris.Helpdesk.Services.NotifyRuleListDataSet..ctor(Boolean fill, Boolean all, Boolean decomposeValueText)
   at Altiris.Helpdesk.Web.WebService.PrepareNotifyRuleIDs(String existingNotifyRuleIDs, String inputNotifyRuleIDs)
   at Altiris.Helpdesk.Web.WebService.UpdateWorkItem(String workitemId, Int32 workitemVersion, NameValue[] workitemData, String notifyRuleIDs, Attachment[] attachments, String auxdata, Boolean mergeAuxData, UploadedFileList upl, WorkItemCommitOptions commitOptions)
 

Could this be an issue with the database or something else in Altiris?

Thanks!