Problem with invoice creation

Problem with invoice creation (Host and Cloud 2.0.8)
Hi, the problem arises with the quantity of goods more than 100,000, a PCP error appears and the invoice with zero goods is saved. When you try to open this invoice, an HTTP 500 error appears. The problem repeats on both the cloud and the host version. If you specify the quantity of goods 99999 then everything is ok.
Our task is to indicate linear meters of cable, therefore it is relevant.
Watch the screenshot and video - https://drive.google.com/open?id=1Ue9FOx4dk0mti6aS0pNMM7cs2-iBk1AI

*PHP error appears

Hello Adm,

Yes, 99999 is the max value you can enter.

Regards

This is a huge problem for me - I have a sale of linear meters of cable in bulk. And the price goes per meter.
Is this a critical problem or can I add more characters?
Thanks!