I can see it on your store too, also notice the cart showing funny icon.. Letter B...and search icon is missing!
How many plugins have you got installed? I have had this problem too, a lot actually.
Try deactivate all your plugins except for Alidropship. Now re-activate all your plugins but do them 1 at a time! Every time you activate a plugin, check if the problem persists. Use this method to find the plugin that creates the problem.
Tell me what you get.