So, I'm minding my own business, scrolling through the files on my sd card, when suddenly a bunch of them show this error:

Location *shows the complete file path* cannot be found. Movies, pdf, images... you name it... gone

I check my sd card in storage, and a day or two ago it lists it as using all but a gig or two free. Today? It shows 2/3rds free.

I check search engines, and thry were no help. As I couldn't figure out how to explain the problem correctly. Google, bing, etc. all thought
I was saying my files would not appear.

The files are VISIBLE, but android says they cannot be found.

I've checked a few times, and no more data seems to be lost. I removed the sd card, and the error isn't happening in local storage.

So is it the sd card or the device? Virus or shit luck?

The only other weird thing that have haapened are as follows:

Phone once opened in sage mode for some reason.

A file I downloaded was missing, I re-downloaded it, and suddenly there were two in the same folder, like I downloaded it the same day.

Mind you, this is no big loss. I CAN redownloaded things, but I just want to know what happened so I don't repeat the same mistake.