Getting not found errors in webmaster

Hi, I just change my CMS , now i am getting not forund errors in my old gallery ( Using Gallery 3 ) .Can you please me to fix the issue ?

Sample Error link

/gallery3/var/albums/Malayalam%2520Movie%2520Wallpapers/Pattanathil%2520Bhootham%2520Wallpapers--Mammootty%2520Pattanathil%2520Bhootham%2520Wallpaper-Malayalam%2520Movie%2520Pattanathil%2520Bhootham%2520Wallpapers-Pattan/Pattanathil%2520Bootham%2520Wallpapers%2520_1_.jpg%3Fm%3D1292298853

/gallery3/var/albums/Actors%20and%20Actress%20Wallpapers/Malayalam%20Actress%20Wallpaper-Malayalam%20Film%20Actress%20Hot%20Wallpapers-Kerala%20Actress%20Sexy%20Wallpapers-Cinema%20Actress%20Wallpapers/Malayalam%20Actress%20Swathi%20Wallpapers/Tamil%20Actress%20Subramaniapura?m=1292307664