Exclamation SD card unexpectedly removed and S-view cover problems!

Hey guys,

My Note 3 has some issues, whenever I open the s-view cover it takes 4 seconds before the screen turns on (sometimes it won't turn on) and then sd card unexpectedly removed appears. I have been using this phone for three months without any problems. It just started yesterday. I have tried to factory reset the phone, but the problem reoccured. . . . And its on Android 4.3 (stock)
Someone got a solution?