With the power on, pull out the battery. Wait about a minute and put it back in. Try to launch App World after the reboot. See if you still get the error.
With the power on, pull out the battery. Wait about a minute and put it back in. Try to launch App World after the reboot. See if you still get the error.
Trying that now. I have already pulled the battery twice. I will try leaving it out for while.
To delete App World. Go to Options -> Application Management. You'll find a list of apps. App World is going to be one of them. Choose App World and then delete.