Try to clear the cache and data on the app that is having problems. If that does not work, then uninstall any updates for the app. You can do this by going into your settings menu, then choosing apps, and manage apps.
If the app is a preinstalled app, you may have to disable it. Otherwise, uninstall it and see if the issue goes away. If disabling or removing the app does not work, you will have to factory reset your phone. Back up your data on an SD card or transfer it to an external storage device first.