[Plugin: Faster Image Insert] faster image insert "http error"

I am a newbie,
I have a problem with faster image insert plugin.
If you upload to wordpress is always an error, and no notice “http error”
How the steps to fix it?
thank you

my site http://www.artdesignexteriorandinterior.com and http://www.nicemicee.com

http://ww.wp.xz.cn/extend/plugins/faster-image-insert/