The same issue, my log spams:
HTML Code:
L 12/09/2015 - 15:01:24: [sourcebans.smx] Query Failed: Duplicate entry
L 12/09/2015 - 15:10:54: [sourcebans.smx] Query Failed: Duplicate entry
L 12/09/2015 - 15:10:56: [sourcebans.smx] Query Failed: Duplicate entry
L 12/09/2015 - 15:10:58: [sourcebans.smx] Query Failed: Duplicate entry
L 12/09/2015 - 15:11:01: [sourcebans.smx] Query Failed: Duplicate entry
L 12/09/2015 - 15:11:03: [sourcebans.smx] Query Failed: Duplicate entry
L 12/09/2015 - 15:11:06: [sourcebans.smx] Query Failed: Duplicate entry
L 12/09/2015 - 15:11:08: [sourcebans.smx] Query Failed: Duplicate entry
L 12/09/2015 - 15:11:10: [sourcebans.smx] Query Failed: Duplicate entry