@LarryH The version in Opera Addons is much older, from 22 Apr 2015.
Could you contact the author with https://flareget.com/support and ask for an update?
I will remove the extension for now and ask the developer for an update by email.
Still no spell check, and I wrote in Spanish "en este mundo triador de problemas nadie escapa..." "in this treacherous world, no one escapes problems" none of which should have escaped the default dictionary.
I am really "annoyed off" at this situation!