People often encounter the problem of Facebook not working while using the social network. If you are wonderingwhy Facebook not working, then the cause could be various factors, including Facebook caches, Facebook account errors, phone storage, internet connection, etc. So, to solve this issue, try refreshing your browser or reopening the site; on a mobile app, close and reopen the app. You can also check if Facebook is offline and then restart your device, update apps, and clear your cache. Make sure your mobile device has sufficient storage space, as Facebook is dependent on this. If you have little space available on your mobile device, you will not be able to launch or use Facebook.