@leocg I'm afraid that somehow I synchronized again, and that's why I lost my old data... and it's just Opera, I didn't download Air, GX... but probably it doesn't matter, i just lost my old data, because I did smth wrong

is there any way to contact support team?

I’ve installed opera on new computer, I have synchronized data in Opera in previous computer

I turn on synchronization, and it shows me some data in new browser, here https://www.sync.opera.com , but I did somthing else, and the previous synchronization is not there anymore, it shows me a new synchronization - so no data at all.
Can I somehow get back to the previous synchronization? Is there any copy of my previous data that I can restore?