Well, if it broke the game you can try a full clean reinstall. You need to uninstall Origin, reboot your system to finish any uninstall issues that may require registry changes, then install Origin again. This is the procedure when having issues with video card drivers to clean them fully from your system, so it might have some luck with Origin. Other problems may involve hardware issues. You could run CHKDSK on your hard drive to make sure there are no corrupted sectors that could cause data problems. Make sure any firewalls allow Origin full access. Perhaps try moving Origin to a different directory or even drive?
Hopefully some other people might have ideas on problems installing/running games with the Origin client.