Database exception

Duplicate entry '49535' for key 1 QUERY: insert into faceriver set type = 'object', subtype = 'thewire', action_type = 'create', access_id = 1, view = 'river/object/thewire/create', subject_guid = 1425, object_guid = 128214, posted = 1241972711

The thing is I've looked into the db river table and the last entry is the one before this 49534.  I cannot find 49535

I am no elgg db expert so any suggestions on what to do would be helpful.

I've had to turn disable the newest members widget, and the  members plugin as they where trowing exceptions as well There is no activity at all being posted to the river and if you type something into the wire widget on the riverdashboard you get the above error message even though the message is recorded to the wire.

I am just turned off  the river dashboard at this rate there wont be much left soon.

Any suggestions