Can not delete or update devices now...

[jsb515]

I'm getting the following errors when trying to remove a device in mac track.. Please help

i'm running the following versions.
MacTrack 2.9
Version 0.8.8h

using cmd.php poller.

11/07/2016 03:28:10 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'1064', SQL:"DELETE FROM mac_track_devices WHERE device_id='
11/07/2016 03:28:10 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'1064', SQL:"DELETE FROM mac_track_aggregated_ports WHERE device_id='
11/07/2016 03:28:10 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'1064', SQL:"DELETE FROM mac_track_interfaces WHERE device_id='
11/07/2016 03:28:10 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'1064', SQL:"DELETE FROM mac_track_ips WHERE device_id='
11/07/2016 03:28:10 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'1064', SQL:"DELETE FROM mac_track_ports WHERE device_id='
11/07/2016 03:28:10 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'1064', SQL:"DELETE FROM mac_track_processes WHERE device_id='
11/07/2016 03:28:10 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'1064', SQL:"DELETE FROM mac_track_processes WHERE device_id='
11/07/2016 03:28:10 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'1064', SQL:"DELETE FROM mac_track_temp_ports WHERE device_id='
11/07/2016 03:28:10 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'1064', SQL:"DELETE FROM mac_track_vlans WHERE device_id='
11/07/2016 03:28:10 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'1064', SQL:"DELETE FROM mac_track_interface_graphs WHERE device_id='