Troubleshoot something that's not working on Facebook
1
Refresh the page.
2
Close the page and reopen.
3
Clear your cache by going to your browser settings.
4
Try again with a different browser (example: if you're on Chrome, try Firefox).
5
Restart your computer.
On Android, go to your phone Settings --> Apps --> Facebook. Tap on Storage and then tap on CLEAR CACHE button.