Try to restart your phone, oftentimes the easiest way to solve the problem is by simply turning the device off and turning it on again. This is because the data stored in the device's RAM might be corrupted and cause the device to hang. Wait for at least 5-10 seconds before turning it on to make sure that it fully reset. If nothing happens, try to reinstall the application.
If you can’t open pictures you receive to view them in full-size or save them, the sender's connection probably wasn't strong enough when uploading or the phone used didn't completely finish uploading the picture. To fix this, open the picture again later or ask your friend to resend the picture.
Kik is a mobile messenger platform for smartphones that allows users to exchange messages and place voice calls to other Kik users. Kik uses the phone's mobile data connection and is available for multiple platforms including iPhone, Android, Windows Phone and Blackberry.
Tip: Kik down? Find solutions to a number of problems that you might encounter using Kik messenger on Kik Help Center.