Last received order takes too long to open in Back Office Prestashop 1.6.1.x

[Haritha9298]

Hello,

 

PS VERSION : 1.6.1.6
PHP VERSION : 5.6.40

The last received order entry is taking too much to open from the order list at PS admin Order . Once clicking on to view button, the view order page is taking almost 15 mins to load. But the other previous order entries are loading normally. Need solution for this.

Thanks in advance.