Try uninstalling and reinstalling the app. If that doesn't work, reach out to Revolut support via chat. They're pretty responsive and can help troubleshoot the problem.
Thanks a lot. I tried that first, but unfortunately it didn't solve the issue. At the end i was able to do it by clearing revolut cache on my device.
If someone else has similar issues, here is the way do that right https://applenapps.com/clear-rеvolut-cache-on-iphone/.
Takes couple of minutes only and i can use the app again.