1. My OS is Windows 10
2. version is the last one I guess as it updates automatically
3. Problems mostly with opera://settings/searchEngines & starting page

5. I changed to this browser from other russian one called Yandex, and also imported info from it to opera(bookmarks etc). And for some reason I can't change the search system in starting page and upper bar for web-adresses and other stuff to Google, It's just missing in list of aviable search systems(but for some reason there's also russian Wikipedia and Yandex's translator).
   Following the advices of your Discord server support I tried recovering via //update and it even helped at some point and Google was set as default, but after a couple of minutes Browser reloaded on itself and changed default search system back to Yandex. I also tried completely reinstalling it and it also didn't help.

I would be glad if you could fix or change this somehow.