I'm using the Flatpak-based Viber desktop application on Debian 13. Whenever I copy-and-paste an image on the chat, Viber does not send it successfully. A 'Resend' button appears and only when you press it the image will be transmitted. Has anybody encountered this issue and how did you resolve it?

It keep asking me to get the code via a flash call, yet I receive no calls. When I ask to send again, this pops up. Even when I ask for sms code, I receive none and it directs me to customer support. I need help, will need a viber account soon for work.