I was out today and my sd card stopped working

[SleepyFish]

My phone was on, i was listening to some music, then the screen froze. After I restarted my phone, it didn't show the sd card anymore, at all. It also deleted all the apps I moved to the as card.I've confirmed the sd card is compatible.

 

[Rukbat]

Have you tried turning the phone off, waiting a few seconds, then turning it back on?

If that doesn't fix it, you'll need a Windows computer - try Using chkdsk to fix a corrupted SD card.