Excursions

MySQL error:
Duplicate entry '3326331' for key 'PRIMARY'
/home/stpete/public_html/code/lib.php:3; in query:
INSERT INTO orders SET session="ddae78f44ce934afa7cb84c9ca981ebd",users2__ID=0,order_num=1 , city__ID = "1" , currency__ID = "3" , exc__ID = "3" , type_ = "exc" , status = 'start'