0967bf21_Lotus_Notes_Traveler_8_5_2__Steps_to_Resolve_Error
[Error Number] 10 [Error Message] Server is busy [Notes] The server returned a status of SML_STATUS_IN_PROGRESS (101) so the client aborted the sync [Steps to Resolve Error] 
The user can perform a manual sync if they are concerned that something is wrong. This error should resolve automatically, assuming the server is still operational.
Lotus Notes Traveler 8.5.2
Steps to Resolve Error