@ginkan, consider using the stable version of Opera if you're seeing crashes in developer - they are a lot more expected in the developer version (it's meant for testing, not for using...). I see that additionally you're also using the Beta of macOS High Sierra. Since that has only been available since a few days, expect some bugs there to be worked out before the final release of High Sierra. In short: if you're using beta versions, expect some bumps 🙂
The initial crash that was discussed in this thread on MacBook Pros with Touch Bar has since been fixed. If you have another issue, let's start a new thread.