admin menu link

Hi there…..like your plugin and have been using it for some time now….but for some reason the menu link in the admin > appearances keeps disappearing on me 🙁 and so can’t change any settings?? I have to reinstall the plggin to get the link back but then it goes again after i have any settings..

its not my theme as i have tried different themes and still the same….

Can you help please??

Tks

http://ww.wp.xz.cn/plugins/fullscreen-slider/