Install bug

[Nems An Ab Akhu Kutisha]

The following error message occurs whenever the install Updates button
is clicked.: 

E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to
correct the problem. 
E: _cache->open() failed, please report.

Because of this bug I can not install any software or updates. I've been
using Linux for 4 days now. New to this OS

Please help.
Thank You for your work on the Ubuntu Project and your attention.