Point problem

I'm new on this site and I got a problem with my point. Here what the point look like:

Lifetime Points: 12.0
Rewards Points Balance: 1.0 - View

And the point log:

Points Approved? Date Operation Category Description
1.0 Approved 18 Jun 2009 - 08:32 insert Site Participation None
-11.0 Approved 18 Jun 2009 - 08:29 solution cleared Site Participation Unmarked as solution
1.0 Approved 17 Jun 2009 - 15:57 insert Site Participation None
1.0 Approved 17 Jun 2009 - 09:30 insert Site Participation None
1.0 Approved 17 Jun 2009 - 09:02 insert Site Participation None
1.0 Approved 17 Jun 2009 - 08:44 insert Site Participation None
1.0 Approved 16 Jun 2009 - 15:52 insert Site Participation None
1.0 Approved 16 Jun 2009 - 15:45 insert Site Participation None
1.0 Approved 16 Jun 2009 - 11:50 insert Site Participation None
1.0 Approved 16 Jun 2009 - 09:31 insert Site Participation None
1.0 Approved 16 Jun 2009 - 08:42 insert Site Participation None
1.0 Approved 15 Jun 2009 - 15:12 insert Site Participation None
1.0 Approved 15 Jun 2009 - 13:19 insert Site Participation None

I lose 11 points because of a clear solution. I couldn't have bought anything with 11points?

Any idea how to get them back?