Fixed it by manually deleting Opera folders (wasn't being able to unistall it), And now it works again after reinstalling. No idea what cause the issues though.

@leocg The same problem happens when I try to open Opera anywhere else. if I try to open the program in Opera files it says "Windows can't find 'C:\Program Files\Opera\Launcher.exe' verify the name was writen correctly and try again"

So, I was using Opera, everything was just fine. Then I closed it, and went to play a steam game, and when I got back, and tried to open it, windows says "Windows can't find "C:...\Navegador Opera.lnk". What's going on, and what can I do to fix it?