Can't Install Updates Or Lite Software

[insight]

Hello Community. 

I'm using LL 3.8 on my very old Lenovo with:

Processor      : 2x Intel® Atom™ CPU N270  @ 1.60GHz
Memory      : 1532MB (977MB used)
Operating System      : Linux Lite 3.8

-Display-
Resolution      : 1280x1024 pixels
OpenGL Renderer      : Mesa DRI Intel® 945GME x86/MMX/SSE2
X11 Vendor      : The X.Org Foundation
-Multimedia-
Audio Adapter      : HDA-Intel - HDA Intel
-Input Devices-
Power Button
Sleep Button
Lid Switch
Power Button
AT Translated Set 2 keyboard
Video Bus
-SCSI Disks-
ATA FUJITSU MHZ2080B
Generic- Multi-Card

*****************

When I try to do updates, I get the following:

============ Log ===========

Reading package lists...
E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable)
E: Unable to lock directory /var/lib/apt/lists/

Also, when I try to install software, I get this error:

Lite Software Error:

- Unable to correct problems, you have held broken packages.

- Make sure your computer is connected to the Internet and try again.

I am connected to the Internet, and the version of LL I'm using isn't scheduled to expire until April of this year.

I would appreciate your help community.  Thanks

Insight