If you're using wi-fi some ISPs (internet service providers) block content from dating apps which will prevent you from saving your profile, seeing people or loading photos. To fix this just try switching to 3G / 4G or change your parental controls on your wi-fi settings.
If you have issues uploading photos make sure you're adding them from your photo gallery or camera roll of your phone. Adding photos directly from another app might work, but we can't guarantee it.