Update: Rolled back to 29.0.1795.60 - all good

I have similar troubles. I've been using Opera for months.
Suddenly today Opera can't open any pages - not even settings, bookmarks, dev.Tools -nothing.
Restarting, uninstalling, reinstalling, deleting user data does NOT help.

Any suggestions?

• Opera Stable 30.0.1835.59
• Win 8.1, 64 bit