Thank you so much for using our theme SuperMag. While viewing your website, it seems that there is added custom css on theme. Have you added/edited theme file? Please let us know if there is any such things or not? If not, please check once by deactivating the installed plugin as well. It may be due to the plugin conflicts as well.
And make sure, you added all the files of theme and WordPress as well.
Let us know about the results as well.