Viber audio/video call issue


Apr 1, 2020
Hello, i have issues when i am using my account and during audio or video call in middle of conversation if i click middle button on my phone(Xaomi redmi note 7) viber desapires and there is no icon of viber nowhere, I can't found nowhere contact with whom i am still in conversation, no even if i go back in viber i can't end this conversation-call, people from other side with whom i talking to can hear me and i can hear them too but can't end conversation because there is issue that i described. Is there any solution ?