Just noticed I have lost a bunch of files from dropbox . Maybe about half my files. 

 

Not sure why,it happened around 6 months ago. 

 

But, I'd been installing some new OS back then.  Not sure, but somehow a synching error caused dropbox to consider my files had been deleted, so it deleted from the online repository. 

 

Unless I somehow accidentally deleted them ?

 

Thanks to crashplan for recovering everything though.