Mohamed Yousry

Why i see White Page not loading when i add Configurable Options then Click update Package Option not load any thing .. Although i have update to 4.8.0 I see this message This site can’t be reachedThe webpage at https://mydomainname.com/admin/package_options/edit/21/ might be temporarily down or it may have moved permanently to a new web address. ERR_CONNECTION_ABORTED Although all files working fine but i don't know from where this?