Some orders without detail and/or status

[stockw]

Hi, i've a shop, and in 3 weeks that i'm on line, i recived 1360 orders.

The problem is that 18 of these orders in different periods and with different products, arrived in my BO with just the first line  of details, and no status. The total of order and shipping is fine.

This appens with all type of payment, paypal, xpay, bankwire and cash on delivry...

 

in the log i can se this

 

Cart cannot be loaded or an order has already been placed using this cart wirh gravity 4

 

i've reinstalled modules, paypal, xpay, bankwire and cash on delivey plus, but this problem still come out.

 

thanx in advice for any suggestion.