Hi Stanislav,
Thanks for your response,
It use to work perfectly, you generate the QR codes and they are loaded in Google docs documents.
I understand that Google makes changes and it's affecting addons and other third-party apps, however, I think it's important to have this basic functionality of the QR Generator, we have many partners and clients that are using the tool.
Looking forward to hearing from you soon.
Best Regards,
Lior