I get these errors when new orders are placed.
“Item (Mage_Sales_Model_Order) with the same id “266” already exist”
“Item (Mage_Customer_Model_Customer) with the same id “216” already exist”;
Now when new orders are placed I cannot access the sales->order and customers->manage customers in the admin. Also the customer can’t see thier order history in the account page on the frontend.
Please help :\