Opera Browser failed to appear in Ubuntu software (it was there 6 months ago!) so I found a download elsewhere. In configuring Opera I was prompted to upgrade to activate vpn. this only insatalled another version or basically caused a multiple configuration. I noticed this in terminal when completing sudo get-apt update. I have tried autoremove, which does not change multiple configuration. How can I fix this? Please be patient I am after all only a novice to linnux and Ubuntu.