Iphone problem with the lock screen
First I want to say that I am sorry because I don't speak English, so I'll do my best.
Okay,
When I close my Iphone ans I and reopen it normally, sometimes the time isn't here and notifications too. Like, it's just my wallpaper with a padlock in the top. If touch ID doesn't work, the keybord for my passwork doesn't appear either and the screen stay as it was.
Please help me I don't know what to do and yes I try to restart it but it still does it!