pls i was able to sucessfully install and activate matlab 2016a,but if i click on simulink icon on the home menu of matlab i get the following erorr. please what do i do? it does not open the simulink liberary but rather error

Failed to load URL http://localhost:31415/toolbox/simulink/sltemplate/web/GalleryView/gallery.html?channel=/sltemplate/GalleryView/All/&viewType=All&startPage=true&snc=544672 with error (-130).