I've got the galaxy s, with firmware version 2.2.1.
Last night, I tried to open one of my apps and it came up with that it had stopped working unexpectedly and to force close. So I forced closed it, tried to open it again and it did it again. Tried to open all the other apps I've downloaded and none of them will open properly; they all crash. Even when I haven't tried to open an app, the phone will tell me it's stopped working and to force close. The ones that were originally on the phone seem to still work though.
Also, when trying to ring someone, I click on the number in their contact and the phone doesn't do anything; it won't ring anyone. I've tried inputting the number myself and it still won't come up with the screen that appears during a call.
The clock on the status bar seems to be lagging behind the time that shows on the lock screen.
Just overall the phone seems to be lagging.
I have recently cracked the screen slightly, but I don't think that would do anything to the actual working of the phone.
Can anyone help? Tell me what's wrong, how to fix it?