[Plugin: WP Super Cache] Invalid Url Page Error

Hi,

Very early this morning I experienced “Invalid URL” errors throughout my site. I could not access any page. At first the problem was intermittent, then it became constant for about an hour. The server was up & running accessing the favicon, just not the pages. I was told that this sounds like a caching error & since this began within days of upgrading to 2.9.1, I thought that perhaps the problem is related to WP Super Cache.

I love Super Cache and am not complaining but simply trying to resolve our issue. Could WP Super Cache be causing this sort of problem?

Thanks!