There could be several reasons why Twitter is not working on your phone. Here are a few things you can try to troubleshoot the issue:
1. Check your internet connection: If you're not connected to the internet, Twitter won't load. Make sure you're connected to a stable internet connection, either through Wi-Fi or mobile data.
2. Check if the Twitter app needs to be updated: If you haven't updated the Twitter app in a while, it may no longer be compatible with your phone's operating system. Check the app store for any available updates and install them.
3. Restart the Twitter app: Sometimes, restarting the app can help fix the issue. Close the app and then reopen it again.
4. Clear the cache and data of the Twitter app: Clearing the app's cache and data can sometimes resolve the issue. Go to your phone's settings, find the Twitter app, and clear the cache and data.
5. Check for any service outages: Occasionally, Twitter experiences service outages that can affect its availability on your phone. You can check Twitter's status page or downdetector.com to see if there are any known issues.
If none of these steps work, you can also try uninstalling and reinstalling the Twitter app or contacting Twitter support for further assistance.