Receiving the following error when attempting to sync calendars:

Void SyncCalendar(Boolean) Line 2338.
System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Exception: This module is not available on this server
   at SplendidCRM.soap.VerifyModuleName(String sMODULE_NAME) in Z:\Inetpub\SplendidCRM\soap.asmx.cs:line 1458
   at SplendidCRM.soap.get_relationships(String session, String module_name, String module_id, String related_module, String related_module_query, Int32 deleted) in Z:\Inetpub\SplendidCRM\soap.asmx.cs:line 2244
   --- End of inner exception stack trace ---
SessionID = bc2e4470-a199-415c-a24a-2001bf8b1b2e

What could be the problem?

Thanks!

No, they show up in the navigational tab and are enabled in the admin panel.