can't access app/widget bar

[kcadvn]

Hi, i don't know what's wrong with my s4. Cause, one day.. I hid the app/widget bar. But when I tried to access it again by clicking the left button. It won't show up. Will it shows up as I press the left button but it never stayed. It only shows for a split seconds... What should I do? Is there any way i can access the app/widget bar?

 

[Rukbat]

Press the app drawer icon at the bottom (the box of little boxes if you're still using the default TouchWiz).