Remmingtyn

I had an issue with trying to teleport to an area, and suddenly my worn huds were giving me script errors, my avatar turned into a cloud, and errors kept popping up "cannot find inventory item" over and over and over again. On relog, same problem, so I rebooted my computer. On reboot everything went back to normal, EXCEPT...I just noticed that ALL of my saved landmarks and favorites are GONE! I started digging into my inventory...anything NOT worn is also GONE. this includes folders and subfolders! What is going on? I've never had this happen before! I'm beyond worried, wondering what happened and how to fix it.