Locket app - couldn’t send a friend request error…

so when I'm trying to add a friend and locate widget for some reason I can I see this error couldn't send friend requests make sure your device is connected to the Internet and try again so let's try again okay so then I see this error again and my Wi-Fi work works perfectly um so there is some issue I don't know with 3G or no it seems it's working fine so yeah do you encounter the same issue please leave in the comments below what do you think should be done with it