Its the same with yours, tonstevens.

This reiterating hitch needs to be stitched. https://forums.opera.com/topic/21180/impetuous-sync/1

emphasis
Hello, the problem I get anytime I try to synchronise Opera on my Windows 7 PC or the Opera Mini for Android is a crash. After entering all required data-username/e-mail, password- it crashes and I have to lose all I have wanted to backup by synchronising; a simple reinstallation doesn't fix the problem and I have to uninstall first before I get opera back. The main reason why I'd lose all data.