Browser Error Message
 

Sorry if this is in the wrong forum but not sure otherwise where to post it. My MacBook Pro crashed and I totally had to reconfigure it. I have reestablished all my bookmarks but the Parkerguns.org seems to have issues. It keeps jumping me to a window that says, "page not found". If I use the back button I then get to the correct page. It happens while getting to the home page and then each subsequent page in a forum or thread I try to get to. I am using Firefox as my browser.

I do not have this problem with any other web site I try to browse.