Update your Facebook App
Update your device to ensure that all bugs are fixed and features are working correctly. To check if you have an update on an Android, do the following:
Open Google Play store
Search for “Facebook”
If there is an update, there will be an “Update” option below “Facebook.”
Select “Update.”
Once it is updated open the app
Another way to create Reels is to open the app directly
Touch the Reel button
You can open from these two options