Sudden closed of the barcode function

I set up the product search, with the correct response from external API. APPGYVER Project 203377
See this video

In the first search everything is fine, and I have the right answer, for unlimited time and the page and the data remain stable
Needing to go into product details, I open the second page and scan again (it would be nice if I could find the details on the second page, without re-scanning, but I couldn’t find how to do it. A little help?)
Problem: just under 10 seconds, the function closes and clears everything. I don’t have time to look at the data that closes by itself

I thought there was too much data to consult, and I deleted several. But the ones that remain serve me for consultation
The settings are right, because everything works

A little help? What can it be ?

thanks for any help