It seems you have a device error in your system settings. I would recommend performing a hard reset to clear out all settings. The instructions to perform the reset are listed below:

1. In the device options, click Security Options.

2. Click General Settings.

3. Press the Menu key.

4. Click Wipe Handheld.

5. To delete all third-party applications from your device, select the Include third-party applications check box.

6. Click Continue.

7. Type blackberry.

Once you have done this it should resolve your issues. Hope this helps