This is where your forum is trying to get the images from
http://www.wargamingwomen.com/themes...n_login_on.gif
This is where the images are actually stored
http://www.wargamingwomen.com/themes.../btn_login.gif
The easiest way for you to correct this is to rename the image forlder "Lang_english" to just Lang_ ie: drop the english bit......
I just had a quick look at your forum, I dont see any other images been use in this folder so you should be fine just renaming it .