The same issue might also be caused by incorrect settings within the app, network, or phone system. If the problem began after you made changes to your iPhone's settings, you should first attempt restoring the modifications you made. Otherwise, revert all settings to their default values. Invalid settings and other problems that may have caused Twitter to act improperly will be removed as part of the process. You'll need to set up or rejoin your Wi-Fi network after the reset. The following is how it works:

• From the Home screen, choose Settings.
• Select General.
• Reset may be found by scrolling down and tapping it.
• Choose Reset all settings from the drop-down menu. Your existing setup will be erased, and the default values will be restored.
• To continue, enter your device passcode if requested.
• After that, press to confirm the reset.