Item Export of 84k+ items failed on virtual box - Sorry we will be back soon

Item Export of 84k+ items failed on virtual box - Sorry we will be back soon

We are testing the ERPnext platform on a virtual box on windows 7. We have imported about 84000+ items and we wanted to upload the default warehouse.

While attempting to export the file, on all occassions, we get the message “Sorry we will be back soon”

We could successfully export the items list from the stock - price - item report but that does not have the item id and we are unsure on how to update the default warehouse.

Anyone who can help?

Thanks.