The option already exists to opt out of secure connection install during install of Internet security since either version 2017 0r 2018, can't remember for sure.
Welcome. It says to activate manually. Make sure your computer date and time is correct and you have a good internet connection. First try to remove your current key this way (instructions are for a trial license but should work the same): https://support.kaspersky.com/11012 Next try to re-enter your activation code manually: https://support.kaspersky.com/13615#block0 If no go, support will be needed.
Izotope RX6 is attempting to receive audio stream.
Welcome. Please try changing that application izotope from low restricted to trusted in application control.
If upgrading to version 2019 doesn't help, please contact official tech support.