Why are the urls showing as errors in searches?

Lately most of the urls I have entered into the search for copyright spot are showing up as having problems reading them. These are the same urls I've used previously. What's up with that?

Edit:

The error message reads as follows: I had a problem reading the URL entered.

It doesn't seem to matter if I use a simple top level domain (ie: photographyofgrace.com) or a blogspot address, the errors are the same. And I've searched with these same address previously.