LG phone screen locked want let me select any of the icons on my screen but phone is unlocked

[AC Question]

I have a LG phone that i purchased from Boost. I added the lock screen where i had to unclock the scree to veiw y screen. I did this about 5 days ago and it was working great! But now once i unlock my screen and try to select be icon to send a text or to view my email it does nothing. It is like my screen is locked but it's not. Just started doing this today. Please help! Thanks