If you're looking for a real word, you might be thinking of:
* Curse - meaning to place a curse on something or someone
* Fix - meaning to repair or mend something
* Uncurse - meaning to remove a curse
It's possible that "cursefix" is a term used in a specific context like a game, book, or online community. If you can provide more information, I might be able to help you figure out what it means.